Paralysis, paralytic (complete) (incomplete)

Alphabetical Index

Use the alphabetical index for the main term paralysis, paralytic (complete) (incomplete) to review the available sub terms and properly select the ICD-10 code with the highest degree of specificity. Instructional notations will guide the coder with information such as "see", "see also", "with", "without", "due to", and "code by site".

  • Paralysis, paralytic (complete) (incomplete) - G83.9 Paralytic syndrome, unspecified
    • abducens, abducent (nerve) - See: Strabismus, paralytic, sixth nerve;
    • abductor, lower extremity - G57.9 Unspecified mononeuropathy of lower limb
    • accessory nerve - G52.8 Disorders of other specified cranial nerves
    • accommodation - See Also: Paresis, of accommodation;
      • hysterical - F44.89 Other dissociative and conversion disorders
    • acoustic nerve (except Deafness)
    • agitans - See Also: Parkinsonism; - G20 Parkinson's disease
      • arteriosclerotic - G21.4 Vascular parkinsonism
    • alternating (oculomotor) - G83.89 Other specified paralytic syndromes
    • amyotrophic - G12.21 Amyotrophic lateral sclerosis
    • ankle - G57.9 Unspecified mononeuropathy of lower limb
    • anus (sphincter) - K62.89 Other specified diseases of anus and rectum
    • arm - See: Monoplegia, upper limb;
    • ascending (spinal), acute - G61.0 Guillain-Barre syndrome
    • association - G12.29 Other motor neuron disease
    • asthenic bulbar - G70.00 Myasthenia gravis without (acute) exacerbation
      • in crisis - G70.01 Myasthenia gravis with (acute) exacerbation
      • with exacerbation (acute) - G70.01 Myasthenia gravis with (acute) exacerbation
    • ataxic (hereditary) - G11.9 Hereditary ataxia, unspecified
      • general (syphilitic) - A52.17 General paresis
    • atrophic - G58.9 Mononeuropathy, unspecified
      • infantile, acute - See: Poliomyelitis, paralytic;
      • progressive - G12.22 Progressive bulbar palsy
      • spinal (acute) - See: Poliomyelitis, paralytic;
    • axillary - G54.0 Brachial plexus disorders
    • Babinski-Nageotte's - G83.89 Other specified paralytic syndromes
    • Bell's - G51.0 Bell's palsy
      • newborn - P11.3 Birth injury to facial nerve
    • Benedikt's - G46.3 Brain stem stroke syndrome
    • birth injury - P14.9 Birth injury to peripheral nervous system, unspecified
      • spinal cord - P11.5 Birth injury to spine and spinal cord
    • bladder (neurogenic) (sphincter) - N31.2 Flaccid neuropathic bladder, not elsewhere classified
    • bowel, colon or intestine - K56.0 Paralytic ileus
    • brachial plexus - G54.0 Brachial plexus disorders
      • birth injury - P14.3 Other brachial plexus birth injuries
      • newborn (birth injury) - P14.3 Other brachial plexus birth injuries
    • brain - G83.9 Paralytic syndrome, unspecified
      • diplegia - G83.0 Diplegia of upper limbs
      • triplegia - G83.89 Other specified paralytic syndromes
    • bronchial - J98.09 Other diseases of bronchus, not elsewhere classified
    • Brown-Séquard - G83.81 Brown-Sequard syndrome
    • bulbar (chronic) (progressive) - G12.22 Progressive bulbar palsy
      • infantile - See: Poliomyelitis, paralytic;
      • poliomyelitic - See: Poliomyelitis, paralytic;
      • pseudo - G12.29 Other motor neuron disease
    • bulbospinal - G70.00 Myasthenia gravis without (acute) exacerbation
      • in crisis - G70.01 Myasthenia gravis with (acute) exacerbation
      • with exacerbation (acute) - G70.01 Myasthenia gravis with (acute) exacerbation
    • cardiac - See Also: Failure, heart; - I50.9 Heart failure, unspecified
    • cerebrocerebellar, diplegic - G80.1 Spastic diplegic cerebral palsy
    • cervical
      • plexus - G54.2 Cervical root disorders, not elsewhere classified
      • sympathetic - G90.09 Other idiopathic peripheral autonomic neuropathy
    • Céstan-Chenais - G46.3 Brain stem stroke syndrome
    • Charcot-Marie-Tooth type - G60.0 Hereditary motor and sensory neuropathy
    • Clark's - G80.9 Cerebral palsy, unspecified
    • colon - K56.0 Paralytic ileus
    • compressed air - T70.3 Caisson disease [decompression sickness]
    • compression
      • arm - G56.9 Unspecified mononeuropathy of upper limb
      • leg - G57.9 Unspecified mononeuropathy of lower limb
      • lower extremity - G57.9 Unspecified mononeuropathy of lower limb
      • upper extremity - G56.9 Unspecified mononeuropathy of upper limb
    • congenital (cerebral) - See: Palsy, cerebral;
    • conjugate movement (gaze) (of eye) - H51.0 Palsy (spasm) of conjugate gaze
      • cortical (nuclear) (supranuclear) - H51.0 Palsy (spasm) of conjugate gaze
    • cordis - See: Failure, heart;
    • cranial or cerebral nerve - G52.9 Cranial nerve disorder, unspecified
    • creeping - G12.22 Progressive bulbar palsy
    • crossed leg - G83.89 Other specified paralytic syndromes
    • crutch - See: Injury, brachial plexus;
    • deglutition - R13.0 Aphagia
      • hysterical - F44.4 Conversion disorder with motor symptom or deficit
    • dementia - A52.17 General paresis
    • descending (spinal) NEC - G12.29 Other motor neuron disease
    • diaphragm (flaccid) - J98.6 Disorders of diaphragm
      • due to accidental dissection of phrenic nerve during procedure - See: Puncture, accidental complicating surgery;
    • digestive organs NEC - K59.8 Other specified functional intestinal disorders
    • diplegic - See: Diplegia;
    • divergence (nuclear) - H51.8 Other specified disorders of binocular movement
    • diver's - T70.3 Caisson disease [decompression sickness]
    • Duchenne's
      • birth injury - P14.0 Erb's paralysis due to birth injury
      • due to or associated with
        • motor neuron disease - G12.22 Progressive bulbar palsy
        • muscular dystrophy - G71.01 Duchenne or Becker muscular dystrophy
    • due to intracranial or spinal birth injury - See: Palsy, cerebral;
    • embolic (current episode) - I63.4 Cerebral infarction due to embolism of cerebral arteries
    • Erb (-Duchenne) (birth) (newborn) - P14.0 Erb's paralysis due to birth injury
    • Erb's syphilitic spastic spinal - A52.17 General paresis
    • esophagus - K22.8 Other specified diseases of esophagus
    • eye muscle (extrinsic) - H49.9 Unspecified paralytic strabismus
      • intrinsic - See Also: Paresis, of accommodation;
    • facial (nerve) - G51.0 Bell's palsy
      • birth injury - P11.3 Birth injury to facial nerve
      • congenital - P11.3 Birth injury to facial nerve
      • following operation NEC - See: Puncture, accidental complicating surgery;
      • newborn (birth injury) - P11.3 Birth injury to facial nerve
    • familial (recurrent) (periodic) - G72.3 Periodic paralysis
      • spastic - G11.4 Hereditary spastic paraplegia
    • fauces - J39.2 Other diseases of pharynx
    • finger - G56.9 Unspecified mononeuropathy of upper limb
    • gait - R26.1 Paralytic gait
    • gastric nerve (nondiabetic) - G52.2 Disorders of vagus nerve
    • gaze, conjugate - H51.0 Palsy (spasm) of conjugate gaze
    • general (progressive) (syphilitic) - A52.17 General paresis
      • juvenile - A50.45 Juvenile general paresis
    • glottis - J38.00 Paralysis of vocal cords and larynx, unspecified
      • bilateral - J38.02 Paralysis of vocal cords and larynx, bilateral
      • unilateral - J38.01 Paralysis of vocal cords and larynx, unilateral
    • gluteal - G54.1 Lumbosacral plexus disorders
    • Gubler (-Millard) - G46.3 Brain stem stroke syndrome
    • hand - See: Monoplegia, upper limb;
    • heart - See: Arrest, cardiac;
    • hemiplegic - See: Hemiplegia;
    • hyperkalemic periodic (familial) - G72.3 Periodic paralysis
    • hypoglossal (nerve) - G52.3 Disorders of hypoglossal nerve
    • hypokalemic periodic - G72.3 Periodic paralysis
    • hysterical - F44.4 Conversion disorder with motor symptom or deficit
    • ileus - K56.0 Paralytic ileus
    • infantile - See Also: Poliomyelitis, paralytic; - A80.30 Acute paralytic poliomyelitis, unspecified
      • bulbar - See: Poliomyelitis, paralytic;
      • cerebral - See: Palsy, cerebral;
      • spastic - See: Palsy, cerebral, spastic;
    • infective - See: Poliomyelitis, paralytic;
    • inferior nuclear - G83.9 Paralytic syndrome, unspecified
    • internuclear - See: Ophthalmoplegia, internuclear;
    • intestine - K56.0 Paralytic ileus
    • iris - H57.09 Other anomalies of pupillary function
      • due to diphtheria (toxin) - A36.89 Other diphtheritic complications
    • ischemic, Volkmann's (complicating trauma) - T79.6 Traumatic ischemia of muscle
    • Jackson's - G83.89 Other specified paralytic syndromes
    • jake - See: Poisoning, food, noxious, plant;
    • Jamaica ginger (jake) - G62.2 Polyneuropathy due to other toxic agents
    • juvenile general - A50.45 Juvenile general paresis
    • Klumpke (-Déjérine) (birth) (newborn) - P14.1 Klumpke's paralysis due to birth injury
    • labioglossal (laryngeal) (pharyngeal) - G12.29 Other motor neuron disease
    • Landry's - G61.0 Guillain-Barre syndrome
    • laryngeal nerve (recurrent) (superior) (unilateral) - J38.00 Paralysis of vocal cords and larynx, unspecified
      • bilateral - J38.02 Paralysis of vocal cords and larynx, bilateral
      • unilateral - J38.01 Paralysis of vocal cords and larynx, unilateral
    • larynx - J38.00 Paralysis of vocal cords and larynx, unspecified
      • bilateral - J38.02 Paralysis of vocal cords and larynx, bilateral
      • due to diphtheria (toxin) - A36.2 Laryngeal diphtheria
      • unilateral - J38.01 Paralysis of vocal cords and larynx, unilateral
    • lateral - G12.23 Primary lateral sclerosis
    • lead
    • left side - See: Hemiplegia;
    • leg - G83.1 Monoplegia of lower limb
      • both - See: Paraplegia;
      • crossed - G83.89 Other specified paralytic syndromes
      • hysterical - F44.4 Conversion disorder with motor symptom or deficit
      • psychogenic - F44.4 Conversion disorder with motor symptom or deficit
      • transient or transitory - R29.818 Other symptoms and signs involving the nervous system
        • traumatic NEC - See: Injury, nerve, leg;
    • levator palpebrae superioris - See: Blepharoptosis, paralytic;
    • limb - See: Monoplegia;
    • lip - K13.0 Diseases of lips
    • Lissauer's - A52.17 General paresis
    • lower limb - See: Monoplegia, lower limb;
      • both - See: Paraplegia;
    • lung - J98.4 Other disorders of lung
    • median nerve - G56.1 Other lesions of median nerve
    • medullary (tegmental) - G83.89 Other specified paralytic syndromes
    • mesencephalic NEC - G83.89 Other specified paralytic syndromes
      • tegmental - G83.89 Other specified paralytic syndromes
    • middle alternating - G83.89 Other specified paralytic syndromes
    • Millard-Gubler-Foville - G46.3 Brain stem stroke syndrome
    • monoplegic - See: Monoplegia;
    • motor - G83.9 Paralytic syndrome, unspecified
    • muscle, muscular NEC - G72.89 Other specified myopathies
      • due to nerve lesion - G58.9 Mononeuropathy, unspecified
      • eye (extrinsic) - H49.9 Unspecified paralytic strabismus
        • intrinsic - See: Paresis, of accommodation;
        • oblique - See: Strabismus, paralytic, fourth nerve;
      • iris sphincter - H21.9 Unspecified disorder of iris and ciliary body
      • ischemic (Volkmann's) (complicating trauma) - T79.6 Traumatic ischemia of muscle
      • progressive - G12.21 Amyotrophic lateral sclerosis
      • progressive, spinal - G12.25 Progressive spinal muscle atrophy
      • pseudohypertrophic - G71.02 Facioscapulohumeral muscular dystrophy
      • spinal progressive - G12.25 Progressive spinal muscle atrophy
    • musculocutaneous nerve - G56.9 Unspecified mononeuropathy of upper limb
    • musculospiral - G56.9 Unspecified mononeuropathy of upper limb
    • nerve - See Also: Disorder, nerve;
      • abducent - See: Strabismus, paralytic, sixth nerve;
      • accessory - G52.8 Disorders of other specified cranial nerves
      • auditory (except Deafness)
      • birth injury - P14.9 Birth injury to peripheral nervous system, unspecified
      • cranial or cerebral - G52.9 Cranial nerve disorder, unspecified
      • facial - G51.0 Bell's palsy
        • birth injury - P11.3 Birth injury to facial nerve
        • congenital - P11.3 Birth injury to facial nerve
        • newborn (birth injury) - P11.3 Birth injury to facial nerve
      • fourth or trochlear - See: Strabismus, paralytic, fourth nerve;
      • newborn (birth injury) - P14.9 Birth injury to peripheral nervous system, unspecified
      • oculomotor - See: Strabismus, paralytic, third nerve;
      • phrenic (birth injury) - P14.2 Phrenic nerve paralysis due to birth injury
      • radial - G56.3 Lesion of radial nerve
      • seventh or facial - G51.0 Bell's palsy
        • newborn (birth injury) - P11.3 Birth injury to facial nerve
      • sixth or abducent - See: Strabismus, paralytic, sixth nerve;
      • syphilitic - A52.15 Late syphilitic neuropathy
      • third or oculomotor - See: Strabismus, paralytic, third nerve;
      • trigeminal - G50.9 Disorder of trigeminal nerve, unspecified
      • trochlear - See: Strabismus, paralytic, fourth nerve;
      • ulnar - G56.2 Lesion of ulnar nerve
    • normokalemic periodic - G72.3 Periodic paralysis
    • ocular - H49.9 Unspecified paralytic strabismus
      • alternating - G83.89 Other specified paralytic syndromes
    • oculofacial, congenital (Moebius) - Q87.0 Congenital malformation syndromes predominantly affecting facial appearance
    • oculomotor (external bilateral) (nerve) - See: Strabismus, paralytic, third nerve;
    • palate (soft) - K13.79 Other lesions of oral mucosa
    • paratrigeminal - G50.9 Disorder of trigeminal nerve, unspecified
    • periodic (familial) (hyperkalemic) (hypokalemic) (myotonic) (normokalemic) (potassium sensitive) (secondary) - G72.3 Periodic paralysis
    • peripheral autonomic nervous system - See: Neuropathy, peripheral, autonomic;
    • peroneal (nerve) - G57.3 Lesion of lateral popliteal nerve
    • pharynx - J39.2 Other diseases of pharynx
    • phrenic nerve - G56.8 Other specified mononeuropathies of upper limb
    • plantar nerve (s) - G57.6 Lesion of plantar nerve
    • pneumogastric nerve - G52.2 Disorders of vagus nerve
    • poliomyelitis (current) - See: Poliomyelitis, paralytic;
    • popliteal nerve - G57.3 Lesion of lateral popliteal nerve
    • postepileptic transitory - G83.84 Todd's paralysis (postepileptic)
    • progressive (atrophic) (bulbar) (spinal) - G12.22 Progressive bulbar palsy
      • general - A52.17 General paresis
      • infantile acute - See: Poliomyelitis, paralytic;
      • supranuclear - G23.1 Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]
    • pseudobulbar - G12.29 Other motor neuron disease
    • pseudohypertrophic (muscle) - G71.09 Other specified muscular dystrophies
    • psychogenic - F44.4 Conversion disorder with motor symptom or deficit
    • quadriceps - G57.9 Unspecified mononeuropathy of lower limb
    • quadriplegic - See: Tetraplegia;
    • radial nerve - G56.3 Lesion of radial nerve
    • rectus muscle (eye) - H49.9 Unspecified paralytic strabismus
    • recurrent isolated sleep - G47.53 Recurrent isolated sleep paralysis
    • respiratory (muscle) (system) (tract) - R06.81 Apnea, not elsewhere classified
      • center NEC - G93.89 Other specified disorders of brain
      • congenital - P28.89 Other specified respiratory conditions of newborn
      • newborn - P28.89 Other specified respiratory conditions of newborn
    • right side - See: Hemiplegia;
    • saturnine
    • sciatic nerve - G57.0 Lesion of sciatic nerve
    • senile - G83.9 Paralytic syndrome, unspecified
    • shaking - See: Parkinsonism;
    • shoulder - G56.9 Unspecified mononeuropathy of upper limb
    • sleep, recurrent isolated - G47.53 Recurrent isolated sleep paralysis
    • spastic - G83.9 Paralytic syndrome, unspecified
      • cerebral - See: Palsy, cerebral, spastic;
      • congenital (cerebral) - See: Palsy, cerebral, spastic;
      • familial - G11.4 Hereditary spastic paraplegia
      • hereditary - G11.4 Hereditary spastic paraplegia
      • quadriplegic - G80.0 Spastic quadriplegic cerebral palsy
      • syphilitic (spinal) - A52.17 General paresis
    • sphincter, bladder - See: Paralysis, bladder;
    • spinal (cord) - G83.9 Paralytic syndrome, unspecified
      • accessory nerve - G52.8 Disorders of other specified cranial nerves
      • acute - See: Poliomyelitis, paralytic;
      • ascending acute - G61.0 Guillain-Barre syndrome
      • atrophic (acute) - See Also: Poliomyelitis, paralytic;
        • spastic, syphilitic - A52.17 General paresis
      • congenital NEC - See: Palsy, cerebral;
      • hereditary - G95.89 Other specified diseases of spinal cord
      • infantile - See: Poliomyelitis, paralytic;
      • progressive - G12.21 Amyotrophic lateral sclerosis
        • muscle - G12.25 Progressive spinal muscle atrophy
      • sequelae NEC - G83.89 Other specified paralytic syndromes
    • sternomastoid - G52.8 Disorders of other specified cranial nerves
    • stomach - K31.84 Gastroparesis
      • diabetic - See: Diabetes, by type, with gastroparesis;
      • nerve - G52.2 Disorders of vagus nerve
        • diabetic - See: Diabetes, by type, with gastroparesis;
    • stroke - See: Infarct, brain;
    • subcapsularis - G56.8 Other specified mononeuropathies of upper limb
    • supranuclear (progressive) - G23.1 Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]
    • sympathetic - G90.8 Other disorders of autonomic nervous system
      • cervical - G90.09 Other idiopathic peripheral autonomic neuropathy
      • nervous system - See: Neuropathy, peripheral, autonomic;
    • syndrome - G83.9 Paralytic syndrome, unspecified
      • specified NEC - G83.89 Other specified paralytic syndromes
    • syphilitic spastic spinal (Erb's) - A52.17 General paresis
    • thigh - G57.9 Unspecified mononeuropathy of lower limb
    • throat - J39.2 Other diseases of pharynx
      • diphtheritic - A36.0 Pharyngeal diphtheria
      • muscle - J39.2 Other diseases of pharynx
    • thrombotic (current episode) - I63.3 Cerebral infarction due to thrombosis of cerebral arteries
    • thumb - G56.9 Unspecified mononeuropathy of upper limb
    • tick - See: Toxicity, venom, arthropod, specified NEC;
    • Todd's (postepileptic transitory paralysis) - G83.84 Todd's paralysis (postepileptic)
    • toe - G57.6 Lesion of plantar nerve
    • tongue - K14.8 Other diseases of tongue
    • transient - R29.5 Transient paralysis
      • arm or leg NEC - R29.818 Other symptoms and signs involving the nervous system
      • traumatic NEC - See: Injury, nerve;
    • trapezius - G52.8 Disorders of other specified cranial nerves
    • traumatic, transient NEC - See: Injury, nerve;
    • trembling - See: Parkinsonism;
    • triceps brachii - G56.9 Unspecified mononeuropathy of upper limb
    • trigeminal nerve - G50.9 Disorder of trigeminal nerve, unspecified
    • trochlear (nerve) - See: Strabismus, paralytic, fourth nerve;
    • ulnar nerve - G56.2 Lesion of ulnar nerve
    • upper limb - See: Monoplegia, upper limb;
    • uremic - N18.9 Chronic kidney disease, unspecified
    • uveoparotitic - D86.89 Sarcoidosis of other sites
    • uvula - K13.79 Other lesions of oral mucosa
      • postdiphtheritic - A36.0 Pharyngeal diphtheria
    • vagus nerve - G52.2 Disorders of vagus nerve
    • vasomotor NEC - G90.8 Other disorders of autonomic nervous system
    • velum palati - K13.79 Other lesions of oral mucosa
    • vesical - See: Paralysis, bladder;
    • vestibular nerve (except Vertigo)
    • vocal cords - J38.00 Paralysis of vocal cords and larynx, unspecified
      • bilateral - J38.02 Paralysis of vocal cords and larynx, bilateral
      • unilateral - J38.01 Paralysis of vocal cords and larynx, unilateral
    • Volkmann's (complicating trauma) - T79.6 Traumatic ischemia of muscle
    • wasting - G12.29 Other motor neuron disease
    • Weber's - G46.3 Brain stem stroke syndrome
    • with
      • syphilis - A52.17 General paresis
    • wrist - G56.9 Unspecified mononeuropathy of upper limb

Clinical Terms

The following are some of the clinical term definitions related or applicable to paralysis, paralytic (complete) (incomplete) within the ICD-10 index for Diseases and Injuries.

Accessory Nerve: The 11th cranial nerve which originates from NEURONS in the MEDULLA and in the CERVICAL SPINAL CORD. It has a cranial root, which joins the VAGUS NERVE (10th cranial) and sends motor fibers to the muscles of the LARYNX, and a spinal root, which sends motor fibers to the TRAPEZIUS and the sternocleidomastoid muscles.

Ankle: The region of the lower limb between the FOOT and the LEG.

Arm: The superior part of the upper extremity between the SHOULDER and the ELBOW.

Association: A functional relationship between psychological phenomena of such nature that the presence of one tends to evoke the other; also, the process by which such a relationship is established.

Birth Injuries: Mechanical or anoxic trauma incurred by the infant during labor or delivery.

Brachial Plexus: The large network of nerve fibers which distributes the innervation of the upper extremity. The brachial plexus extends from the neck into the axilla. In humans, the nerves of the plexus usually originate from the lower cervical and the first thoracic spinal cord segments (C5-C8 and T1), but variations are not uncommon.

Brain: The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.

Colon: The segment of LARGE INTESTINE between the CECUM and the RECTUM. It includes the ASCENDING COLON; the TRANSVERSE COLON; the DESCENDING COLON; and the SIGMOID COLON.

Deglutition: The act of taking solids and liquids into the GASTROINTESTINAL TRACT through the mouth and throat.

Dementia: An acquired organic mental disorder with loss of intellectual abilities of sufficient severity to interfere with social or occupational functioning. The dysfunction is multifaceted and involves memory, behavior, personality, judgment, attention, spatial relations, language, abstract thought, and other executive functions. The intellectual decline is usually progressive, and initially spares the level of consciousness.

Esophagus: The muscular membranous segment between the PHARYNX and the STOMACH in the UPPER GASTROINTESTINAL TRACT.

Fingers: Four or five slender jointed digits in humans and primates, attached to each HAND.

Gait: Manner or style of walking.

Glottis: The vocal apparatus of the larynx, situated in the middle section of the larynx. Glottis consists of the VOCAL FOLDS and an opening (rima glottidis) between the folds.

Hand: The distal part of the arm beyond the wrist in humans and primates, that includes the palm, fingers, and thumb.

Heart: The hollow, muscular organ that maintains the circulation of the blood.

Ileus: A condition caused by the lack of intestinal PERISTALSIS or INTESTINAL MOTILITY without any mechanical obstruction. This interference of the flow of INTESTINAL CONTENTS often leads to INTESTINAL OBSTRUCTION. Ileus may be classified into postoperative, inflammatory, metabolic, neurogenic, and drug-induced.

Intestines: The section of the alimentary canal from the STOMACH to the ANAL CANAL. It includes the LARGE INTESTINE and SMALL INTESTINE.

Iris: The most anterior portion of the uveal layer, separating the anterior chamber from the posterior. It consists of two layers - the stroma and the pigmented epithelium. Color of the iris depends on the amount of melanin in the stroma on reflection from the pigmented epithelium.

Larynx: A tubular organ of VOICE production. It is located in the anterior neck, superior to the TRACHEA and inferior to the tongue and HYOID BONE.

Lead: A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb.

Leg: The inferior part of the lower extremity between the KNEE and the ANKLE.

Extremities: The farthest or outermost projections of the body, such as the HAND and FOOT.

Lip: Either of the two fleshy, full-blooded margins of the mouth.

Lower Extremity: The region of the lower limb in animals, extending from the gluteal region to the FOOT, and including the BUTTOCKS; HIP; and LEG.

Lower Extremity: The region of the lower limb in animals, extending from the gluteal region to the FOOT, and including the BUTTOCKS; HIP; and LEG.

Lung: Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.

Median Nerve: A major nerve of the upper extremity. In humans, the fibers of the median nerve originate in the lower cervical and upper thoracic spinal cord (usually C6 to T1), travel via the brachial plexus, and supply sensory and motor innervation to parts of the forearm and hand.

Motor Neuron Disease: Diseases characterized by a selective degeneration of the motor neurons of the spinal cord, brainstem, or motor cortex. Clinical subtypes are distinguished by the major site of degeneration. In AMYOTROPHIC LATERAL SCLEROSIS there is involvement of upper, lower, and brainstem motor neurons. In progressive muscular atrophy and related syndromes (see MUSCULAR ATROPHY, SPINAL) the motor neurons in the spinal cord are primarily affected. With progressive bulbar palsy (BULBAR PALSY, PROGRESSIVE), the initial degeneration occurs in the brainstem. In primary lateral sclerosis, the cortical neurons are affected in isolation. (Adams et al., Principles of Neurology, 6th ed, p1089)

Muscles: Contractile tissue that produces movement in animals.

Nervous System: The entire nerve apparatus, composed of a central part, the brain and spinal cord, and a peripheral part, the cranial and spinal nerves, autonomic ganglia, and plexuses. (Stedman, 26th ed)

Infant, Newborn: An infant during the first 28 days after birth.

Pharynx: A funnel-shaped fibromuscular tube that conducts food to the ESOPHAGUS, and air to the LARYNX and LUNGS. It is located posterior to the NASAL CAVITY; ORAL CAVITY; and LARYNX, and extends from the SKULL BASE to the inferior border of the CRICOID CARTILAGE anteriorly and to the inferior border of the C6 vertebra posteriorly. It is divided into the NASOPHARYNX; OROPHARYNX; and HYPOPHARYNX (laryngopharynx).

Phrenic Nerve: The motor nerve of the diaphragm. The phrenic nerve fibers originate in the cervical spinal column (mostly C4) and travel through the cervical plexus to the diaphragm.

Radial Nerve: A major nerve of the upper extremity. In humans the fibers of the radial nerve originate in the lower cervical and upper thoracic spinal cord (usually C5 to T1), travel via the posterior cord of the brachial plexus, and supply motor innervation to extensor muscles of the arm and cutaneous sensory fibers to extensor regions of the arm and hand.

Sciatic Nerve: A nerve which originates in the lumbar and sacral spinal cord (L4 to S3) and supplies motor and sensory innervation to the lower extremity. The sciatic nerve, which is the main continuation of the sacral plexus, is the largest nerve in the body. It has two major branches, the TIBIAL NERVE and the PERONEAL NERVE.

Shoulder: Part of the body in humans and primates where the arms connect to the trunk. The shoulder has five joints; ACROMIOCLAVICULAR joint, CORACOCLAVICULAR joint, GLENOHUMERAL joint, scapulathoracic joint, and STERNOCLAVICULAR joint.

Muscle Spasticity: A form of muscle hypertonia associated with upper MOTOR NEURON DISEASE. Resistance to passive stretch of a spastic muscle results in minimal initial resistance (a "free interval") followed by an incremental increase in muscle tone. Tone increases in proportion to the velocity of stretch. Spasticity is usually accompanied by HYPERREFLEXIA and variable degrees of MUSCLE WEAKNESS. (From Adams et al., Principles of Neurology, 6th ed, p54)

Spinal Cord: A cylindrical column of tissue that lies within the vertebral canal. It is composed of WHITE MATTER and GRAY MATTER.

Stomach: An organ of digestion situated in the left upper quadrant of the abdomen between the termination of the ESOPHAGUS and the beginning of the DUODENUM.

Stroke: A group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to BRAIN ISCHEMIA or INTRACRANIAL HEMORRHAGES. Stroke is classified by the type of tissue NECROSIS, such as the anatomic location, vasculature involved, etiology, age of the affected individual, and hemorrhagic vs. non-hemorrhagic nature. (From Adams et al., Principles of Neurology, 6th ed, pp777-810)

Syndrome: A characteristic symptom complex.

Syphilis: A contagious venereal disease caused by the spirochete TREPONEMA PALLIDUM.

Thigh: The portion of the leg in humans and other animals found between the HIP and KNEE.

Thumb: The first digit on the radial side of the hand which in humans lies opposite the other four.

Ticks: Blood-sucking acarid parasites of the order Ixodida comprising two families: the softbacked ticks (ARGASIDAE) and hardbacked ticks (IXODIDAE). Ticks are larger than their relatives, the MITES. They penetrate the skin of their host by means of highly specialized, hooked mouth parts and feed on its blood. Ticks attack all groups of terrestrial vertebrates. In humans they are responsible for many TICK-BORNE DISEASES, including the transmission of ROCKY MOUNTAIN SPOTTED FEVER; TULAREMIA; BABESIOSIS; AFRICAN SWINE FEVER; and RELAPSING FEVER. (From Barnes, Invertebrate Zoology, 5th ed, pp543-44)

Toes: Any one of five terminal digits of the vertebrate FOOT.

Tongue: A muscular organ in the mouth that is covered with pink tissue called mucosa, tiny bumps called papillae, and thousands of taste buds. The tongue is anchored to the mouth and is vital for chewing, swallowing, and for speech.

Transients and Migrants: People who frequently change their place of residence.

Superficial Back Muscles: The top layer of the back muscles whose function is to move the SCAPULA. This group of muscles consists of the trapezius, latissimus dorsi, rhomboid major, rhomboid minor and levator scapulae.

Trigeminal Nerve: The 5th and largest cranial nerve. The trigeminal nerve is a mixed motor and sensory nerve. The larger sensory part forms the ophthalmic, mandibular, and maxillary nerves which carry afferents sensitive to external or internal stimuli from the skin, muscles, and joints of the face and mouth and from the teeth. Most of these fibers originate from cells of the TRIGEMINAL GANGLION and project to the TRIGEMINAL NUCLEUS of the brain stem. The smaller motor part arises from the brain stem trigeminal motor nucleus and innervates the muscles of mastication.

Ulnar Nerve: A major nerve of the upper extremity. In humans, the fibers of the ulnar nerve originate in the lower cervical and upper thoracic spinal cord (usually C7 to T1), travel via the medial cord of the brachial plexus, and supply sensory and motor innervation to parts of the hand and forearm.

Upper Extremity: The region of the upper limb in animals, extending from the deltoid region to the HAND, and including the ARM; AXILLA; and SHOULDER.

Upper Extremity: The region of the upper limb in animals, extending from the deltoid region to the HAND, and including the ARM; AXILLA; and SHOULDER.

Uvula: A fleshy extension at the back of the soft palate that hangs above the opening of the throat.

Vagus Nerve: The 10th cranial nerve. The vagus is a mixed nerve which contains somatic afferents (from skin in back of the ear and the external auditory meatus), visceral afferents (from the pharynx, larynx, thorax, and abdomen), parasympathetic efferents (to the thorax and abdomen), and efferents to striated muscle (of the larynx and pharynx).

Vocal Cords: A pair of cone-shaped elastic mucous membrane projecting from the laryngeal wall and forming a narrow slit between them. Each contains a thickened free edge (vocal ligament) extending from the THYROID CARTILAGE to the ARYTENOID CARTILAGE, and a VOCAL MUSCLE that shortens or relaxes the vocal cord to control sound production.

Wrist: The region of the upper limb between the metacarpus and the FOREARM.