anterior spinocerebellar tract

an·te·ri·or spi·no·cer·e·bel·lar tract

[TA] a bundle of fibers originating in the base of the posterior horn and zona intermedia throughout lumbosacral segments of the spinal cord, crossing to the opposite side and ascending in a peripheral position in the ventral half of the lateral funiculus. In its ascent through the rhombencephalon, the tract curves sharply dorsalward along the rostral border of the trigeminal motor nucleus, entering the cerebellum in a caudal direction over the surface of the superior cerebellar peduncle, and terminating as mossy fibers in the granular layer of the cortex of the cerebellar vermis. The bundle conveys proprioceptive and exteroceptive information largely from the opposite lower extremity, although some of its fibers recross in the cerebellum. Synonym(s): tractus spinocerebellaris anterior [TA], ventral spinocerebellar tract ☆ , Gowers column, Gowers tract

an·te·ri·or spi·no·cer·e·bel·lar tract

(an-tēr'ē-ŏr spī'nō-ser'ĕ-bel'ăr trakt) [TA] A bundle of fibers originating in the base of the posterior horn and zona intermedia throughout lumbosacral segments of the spinal cord, crossing to the opposite side and ascending in a peripheral position in the ventral half of the lateral funiculus. In its ascent through the rhombencephalon, the tract curves sharply dorsad along the rostral border of the trigeminal motor nucleus, entering the cerebellum in a caudal direction over the dorsal surface of the superior cerebellar peduncle, and terminating as mossy fibers in the granular layer of the cortex of the cerebellar vermis. The bundle conveys proprioceptive and exteroceptive information largely from the opposite lower extremity.
Synonym(s): Gowers tract.

tract

(trakt) [L. tractus, extent] 1. A pathway, course, or channel.2. A bundle of parallel axons in the central nervous system (CNS) that runs along a stereotyped course from a common originating area to a common termination area. 3. A group of organs or parts that form a continuous pathway.

aerodigestive tract

The anatomic region in the oral cavity and throat through which both air and food pass.

afferent tract

Any axon tract that carries information toward a particular target area.

alimentary tract

Digestive tract.

anterior spinocerebellar tract

Ventral spinocerebellar tract.

ascending tract

An axon tract running rostrally in the spinal cord or brain, often a sensory pathway.

BILIARY TRACT (IN RELATION TO LIVER, PANCREAS, AND DUODENUM)

biliary tract

The organs and ducts through which bile travels on its way to the duodenum. These are the bile canaliculi, right and left hepatic ducts, common hepatic duct, gallbladder, cystic duct, bile duct, and hepatopancreatic ampulla. See: illustration; bile ducts; gallbladder; liver

Burdach tract

See: Burdach, Karl

central tegmental tract

An axon tract connecting the subthalamus and the midbrain reticular formation with the inferior olivary nucleus.

corticobulbar tract

An axon tract from the motor cortex that innervates the reticular formation and the cranial nerve nuclei in the hindbrain.

corticohypothalamictract

An axon tract from the frontal, parietal, and occipital cortices that innervates the hypothalamus.

corticospinal tract

An axon tract from the motor cortex that travels into the spinal cord, synapsing at all levels. Axons of the corticospinal tract first converge into a bundle in the posterior limb of the internal capsule and continue as a compact bundle through the cerebral peduncle. In the pons, the corticospinal tract separates into several bundles that converge more caudally in the hindbrain as the pyramid. In the caudal hindbrain, the corticospinal tract crosses the midline in the pyramidal decussation and continues down the spinal cord as the lateral corticospinal tract.

cuneocerebellar tract

An axon tract originating in the external cuneate nucleus and synapsing in the ipsilateral cerebellum.

descending tract

Any axon tract running caudally in the spinal cord or brain, often a motor pathway.

digestive tract

The continuous set of tubes that move food from the mouth to the anus. Synonym: alimentary tract

direct cerebellar tract

Dorsal spinocerebellar tract.

dorsal spinocerebellar tract

An ipsilateral (uncrossed) axon tract originating throughout Clarke's column in the spinal cord. The tract runs in the lateral funiculus of the spinal cord and terminates in the ipsilateral vermis of the cerebellum. Synonym: direct cerebellar tract

dorsolateral tract

Lissauer's tract.

efferent tract

Any axon tract that carries information away from a particular target area.

extrapyramidal tract

Any of the axon tracts of the extrapyramidal system. See: extrapyramidal system

frontopontine tract

A tract that passes from the cerebral cortex of the frontal lobe through the internal capsule and cerebral peduncle to the pons. Synonym: Arnold's bundle

gastrointestinal tract

The esophagus, stomach, and intestines.

geniculohypothalamic tract

An axon tract originating in the lateral geniculate nucleus of the thalamus and innervating the suprachiasmatic nuclei of the hypothalamus. The suprachiasmatic nuclei contain pacemakers of the circadian rhythm system, and the geniculohypothalamic tract provides visual input that helps to entrain the pacemaker cells.

genital tract

In males, the channels by which spermatozoa leave the body. In females, the channels in which the ovum grows and is fertilized and through which the baby leaves the body. Synonym: reproductive tract

genitourinary tract

The genital and urinary tracts together. Synonym: urogenital tract

habenulo-interpeduncular tract

Fasciculus retroflexus.

iliotibial tract

A thickened band in the deep fascia along the lateral thigh (i.e., the fascia lata) that extends from the tubercle of the iliac crest to the lateral condyle of the tibia. The iliotibial tract is an aponeurosis shared by both the gluteus maximus and tensor fasciae lata muscles, both of which insert into it.

internodal tract

In the heart, myocardial tissue in the right atrium that preferentially carries sinoatrial impulses to the left atrium, to the intra-atrial septum, or to the atrioventricular node.

intestinal tract

The small and large intestines.

Lissauer's tract

See: Lissauer's tract

lower gastrointestinal tract

The anus, rectum, colon, cecum, ileum and jejunum.

mammillotegmental tract

An axon tract originating in the mammillary body and synapsing in small nuclei near the caudal end of the midbrain tegmentum.

mammillothalamic tract

An axon tract originating in the mammillary body and synapsing in the anterior nucleus of the thalamus. The mammillothalamic tract is an integral component of the loop of neural circuits called the limbic system.

medullary reticulospinal tract

See: reticulospinal tract

mesencephalic tract of the trigeminal nerve

An axon tract of the unipolar sensory neurons of the trigeminal mesencephalic nucleus. Peripheral processes of these neurons run in the mesencephalic tract to reach the mandibular nerve (CN V3) and carry proprioceptive information from the face and the teeth. Axons of these neurons run in the mesencephalic tract and innervate a number of central nuclei, including the trigeminal motor nucleus. Synonym: trigeminal mesencephalic tract

motor tract

Any axon tract, usually running caudally in the CNS, that transmits output information.

olfactory tract

A white ribbon-like band along the bottom (orbital) surface of each frontal lobe, composed of axons from the mitral cells in olfactory bulb. These axons terminate in the piriform cortex (the primary olfactory cortex) at the base of the cerebral hemisphere.

olivocerebellar tract

An axon tract running transversely (as opposed to longitudinally) in the hindbrain from the inferior olivary nucleus to all parts of the cerebellum via the inferior cerebellar peduncle.

optic tract

The main bundle of axons from the optic nerves caudal to the optic chiasm. Axons from the temporal half of the retina continue in the ipsilateral optic tract; axons from the nasal half of the retina cross the midline of the brain in the optic chiasm and join the contralateral optic tract. Most optic tract axons synapse in the lateral geniculate nucleus of the thalamus; most of the remaining optic tract axons synapse in the superior colliculus (optic tectum) of the midbrain.

pontine reticulospinal tract

See: reticulospinal tract

pyramidal tract

The corticobulbar and corticospinal tracts, which are the major direct outputs of the motor cortex. In cross-sections of the hindbrain, the pyramidal tract has a triangular shape.

reproductive tract

Genital tract.

respiratory tract

The respiratory channel from mouth and nose to the alveoli in the lungs.

reticulospinal tract

Either of two tracts:the pontine reticulospinal tract or the medullary reticulospinal tract. The pontine reticulospinal tract contains axons originating in the pontine reticular formation; the axons run into the spinal cord along the ventral midline (the medial part of the anterior funiculus). The medullary reticulospinal tract contains axons originating in the medial two thirds of the hindbrain reticular formation; these axons run into the spinal cord in the anterior part of the lateral funiculus.

retinohypothalamic tract

The retinal ganglion cell axons from the optic nerves that leave the optic tract at the optic chiasm to innervate the suprachiasmatic nucleus (in the hypothalamus), which contains the pacemaker cells for circadian rhythms.

rubrospinal tract

An axon tract originating in the red nucleus of the midbrain. After leaving the red nucleus, axons cross to the contralateral side and descend into the spinal cord, where they terminate in the ventral horns. The red nucleus is innervated by axons from the motor cortices and the cerebellum, and the rubrospinal pathway is an extrapyramidal route to the spinal cord. A major function of rubrospinal axons is to set and adjust the muscle tone in the flexor muscles.

sensory tract

Any axon tract, usually traveling rostrally in the CNS, that transmits information related to somatic or visceral sensation.

solitary tract

Tractus solitarius.

spinal tract of the trigeminal nerve

A tract of somatic sensory axons from the trigeminal nerve that runs caudally from the midpontine level of the brainstem along the spinal nucleus of the trigeminal nerve. The tract carries pain and temperature information from the face, and its axons synapse topographically in the adjacent nucleus. In the transition zone between hindbrain and spinal cord, the spinal tract of the trigeminal nerve disappears into the tract of Lissauer although a few axons of the spinal tract extend as far caudally as spinal cord segment C3-C4. Synonym: trigeminal spinal tract

spinocerebellartract

The dorsal or the ventral spinocerebellar tract.

spinothalamic tract

The lateral or the anterior spinothalamic tract. Both tracts are bundles of axons running rostrally in the ventrolateral quadrant (the ventral half of the lateral funiculus) of the spinal cord, originating from contralateral dorsal horn neurons, and synapsing in the ventral posterolateral (VPL) nucleus of the thalamus. The lateral spinothalamic tract carries pain and temperature information from the body; the anterior spinothalamic tract (adjacent and dorsal to the lateral tract) carries light touch information.

supraopticohypophyseal tract

, supraopticohypophyial tractA tract of fibers arising from cell bodies located in supraoptic and paraventricular nuclei of the hypothalamus and terminating in the posterior lobe of the hypophysis.

trigeminal mesencephalic tract

Mesencephalic tract of the trigeminal nerve.

trigeminal spinal tract

Spinal tract of the trigeminal nerve.

trigeminothalamic tract

Trigeminal lemniscus.

upper gastrointestinal tract

The esophagus, stomach, and duodenum.

urinary tract

The channel followed by urine in the body, from the glomeruli in the kidneys through the ureters, bladder, and urethra.

urogenital tract

Genitourinary tract.

uveal tract

The vascular and pigmented tissues that constitute the middle layer of the wall of the eye. The tract comprises the iris, ciliary body, and choroid. Synonym: vascular tunic of the eye

ventral spinocerebellar tract

An axon tract originating in the contralateral dorsal and intermediate horns of the lower spinal cord, from the coccygeal through the lumbar segments. This tract runs in the lateral funiculus of the spinal cord, recrosses the midline, and terminates in the ipsilateral vermis of the cerebellum. Synonym: anterior spinocerebellar tract

ventricular outflow tract

In the heart, the pathway through which blood is normally ejected from the ventricle. For the left ventricle, it includes the walls of the ventricle, the anterior leaflet of the mitral valve, the aortic valve, the ascending aorta, and the arch of the aorta. For the right ventricle, it includes the walls of the ventricle, the pulmonic valve, the pulmonary trunk, and the pulmonary arteries.

vestibulospinal tract

An axon tract that conveys balance and equilibrium information to the spinal cord from the vestibular nuclei in the brainstem. The medial vestibulospinal tract is the continuation of the medial longitudinal fasciculus (MLF) caudally into the spinal cord below the cervical levels; it runs along the medial margin of the ventral quadrant of the cord. The lateral vestibulospinal tract runs caudally in an anterior band in the ventral and ventrolateral quadrant of the spinal cord.

vocal tract

The tissues and organs that produce human vocalizations, including lips, tongue, mouth, nasal cavities, pharynx, and larynx.

Gowers,

Sir William Richard, English neurologist, 1845-1915. Gowers column - a bundle of fibers that conveys proprioceptive and exteroceptive information largely from the opposite lower extremity. Synonym(s): anterior spinocerebellar tract; Gowers tractGowers contraction - contraction of the calf muscles when the anterior surface of the leg is struck. Synonym(s): front-tap contractionGowers disease - a distal type of progressive muscular dystrophy. Synonym(s): saltatory spasmGowers solution - solution used to count red blood cells.Gowers syndrome - syndrome consisting of palpitation, chest pain, respiratory difficulties, and disturbances in gastric motility, now considered psychogenic. Synonym(s): vagal attack; vasovagal attackGowers tract - Synonym(s): Gowers column

单词	anterior spinocerebellar tract
释义	DictionarySeetract anterior spinocerebellar tract an·te·ri·or spi·no·cer·e·bel·lar tract [TA] a bundle of fibers originating in the base of the posterior horn and zona intermedia throughout lumbosacral segments of the spinal cord, crossing to the opposite side and ascending in a peripheral position in the ventral half of the lateral funiculus. In its ascent through the rhombencephalon, the tract curves sharply dorsalward along the rostral border of the trigeminal motor nucleus, entering the cerebellum in a caudal direction over the surface of the superior cerebellar peduncle, and terminating as mossy fibers in the granular layer of the cortex of the cerebellar vermis. The bundle conveys proprioceptive and exteroceptive information largely from the opposite lower extremity, although some of its fibers recross in the cerebellum. Synonym(s): tractus spinocerebellaris anterior [TA], ventral spinocerebellar tract ☆ , Gowers column, Gowers tract an·te·ri·or spi·no·cer·e·bel·lar tract (an-tēr'ē-ŏr spī'nō-ser'ĕ-bel'ăr trakt) [TA] A bundle of fibers originating in the base of the posterior horn and zona intermedia throughout lumbosacral segments of the spinal cord, crossing to the opposite side and ascending in a peripheral position in the ventral half of the lateral funiculus. In its ascent through the rhombencephalon, the tract curves sharply dorsad along the rostral border of the trigeminal motor nucleus, entering the cerebellum in a caudal direction over the dorsal surface of the superior cerebellar peduncle, and terminating as mossy fibers in the granular layer of the cortex of the cerebellar vermis. The bundle conveys proprioceptive and exteroceptive information largely from the opposite lower extremity. Synonym(s): Gowers tract. tract (trakt) [L. tractus, extent] 1. A pathway, course, or channel.2. A bundle of parallel axons in the central nervous system (CNS) that runs along a stereotyped course from a common originating area to a common termination area. 3. A group of organs or parts that form a continuous pathway. aerodigestive tract The anatomic region in the oral cavity and throat through which both air and food pass. afferent tract Any axon tract that carries information toward a particular target area. alimentary tract Digestive tract. anterior spinocerebellar tract Ventral spinocerebellar tract. ascending tract An axon tract running rostrally in the spinal cord or brain, often a sensory pathway.BILIARY TRACT (IN RELATION TO LIVER, PANCREAS, AND DUODENUM) biliary tract The organs and ducts through which bile travels on its way to the duodenum. These are the bile canaliculi, right and left hepatic ducts, common hepatic duct, gallbladder, cystic duct, bile duct, and hepatopancreatic ampulla. See: illustration; bile ducts; gallbladder; liver Burdach tract See: Burdach, Karl central tegmental tract An axon tract connecting the subthalamus and the midbrain reticular formation with the inferior olivary nucleus. corticobulbar tract An axon tract from the motor cortex that innervates the reticular formation and the cranial nerve nuclei in the hindbrain. corticohypothalamictract An axon tract from the frontal, parietal, and occipital cortices that innervates the hypothalamus. corticospinal tract An axon tract from the motor cortex that travels into the spinal cord, synapsing at all levels. Axons of the corticospinal tract first converge into a bundle in the posterior limb of the internal capsule and continue as a compact bundle through the cerebral peduncle. In the pons, the corticospinal tract separates into several bundles that converge more caudally in the hindbrain as the pyramid. In the caudal hindbrain, the corticospinal tract crosses the midline in the pyramidal decussation and continues down the spinal cord as the lateral corticospinal tract. cuneocerebellar tract An axon tract originating in the external cuneate nucleus and synapsing in the ipsilateral cerebellum. descending tract Any axon tract running caudally in the spinal cord or brain, often a motor pathway. digestive tract The continuous set of tubes that move food from the mouth to the anus. Synonym: alimentary tract direct cerebellar tract Dorsal spinocerebellar tract. dorsal spinocerebellar tract An ipsilateral (uncrossed) axon tract originating throughout Clarke's column in the spinal cord. The tract runs in the lateral funiculus of the spinal cord and terminates in the ipsilateral vermis of the cerebellum. Synonym: direct cerebellar tract dorsolateral tract Lissauer's tract. efferent tract Any axon tract that carries information away from a particular target area. extrapyramidal tract Any of the axon tracts of the extrapyramidal system. See: extrapyramidal system frontopontine tract A tract that passes from the cerebral cortex of the frontal lobe through the internal capsule and cerebral peduncle to the pons. Synonym: Arnold's bundle gastrointestinal tract The esophagus, stomach, and intestines. geniculohypothalamic tract An axon tract originating in the lateral geniculate nucleus of the thalamus and innervating the suprachiasmatic nuclei of the hypothalamus. The suprachiasmatic nuclei contain pacemakers of the circadian rhythm system, and the geniculohypothalamic tract provides visual input that helps to entrain the pacemaker cells. genital tract In males, the channels by which spermatozoa leave the body. In females, the channels in which the ovum grows and is fertilized and through which the baby leaves the body. Synonym: reproductive tract genitourinary tract The genital and urinary tracts together. Synonym: urogenital tract habenulo-interpeduncular tract Fasciculus retroflexus. iliotibial tract A thickened band in the deep fascia along the lateral thigh (i.e., the fascia lata) that extends from the tubercle of the iliac crest to the lateral condyle of the tibia. The iliotibial tract is an aponeurosis shared by both the gluteus maximus and tensor fasciae lata muscles, both of which insert into it. internodal tract In the heart, myocardial tissue in the right atrium that preferentially carries sinoatrial impulses to the left atrium, to the intra-atrial septum, or to the atrioventricular node. intestinal tract The small and large intestines. Lissauer's tract See: Lissauer's tract lower gastrointestinal tract The anus, rectum, colon, cecum, ileum and jejunum. mammillotegmental tract An axon tract originating in the mammillary body and synapsing in small nuclei near the caudal end of the midbrain tegmentum. mammillothalamic tract An axon tract originating in the mammillary body and synapsing in the anterior nucleus of the thalamus. The mammillothalamic tract is an integral component of the loop of neural circuits called the limbic system. medullary reticulospinal tract See: reticulospinal tract mesencephalic tract of the trigeminal nerve An axon tract of the unipolar sensory neurons of the trigeminal mesencephalic nucleus. Peripheral processes of these neurons run in the mesencephalic tract to reach the mandibular nerve (CN V3) and carry proprioceptive information from the face and the teeth. Axons of these neurons run in the mesencephalic tract and innervate a number of central nuclei, including the trigeminal motor nucleus. Synonym: trigeminal mesencephalic tract motor tract Any axon tract, usually running caudally in the CNS, that transmits output information. olfactory tract A white ribbon-like band along the bottom (orbital) surface of each frontal lobe, composed of axons from the mitral cells in olfactory bulb. These axons terminate in the piriform cortex (the primary olfactory cortex) at the base of the cerebral hemisphere. olivocerebellar tract An axon tract running transversely (as opposed to longitudinally) in the hindbrain from the inferior olivary nucleus to all parts of the cerebellum via the inferior cerebellar peduncle. optic tract The main bundle of axons from the optic nerves caudal to the optic chiasm. Axons from the temporal half of the retina continue in the ipsilateral optic tract; axons from the nasal half of the retina cross the midline of the brain in the optic chiasm and join the contralateral optic tract. Most optic tract axons synapse in the lateral geniculate nucleus of the thalamus; most of the remaining optic tract axons synapse in the superior colliculus (optic tectum) of the midbrain. pontine reticulospinal tract See: reticulospinal tract pyramidal tract The corticobulbar and corticospinal tracts, which are the major direct outputs of the motor cortex. In cross-sections of the hindbrain, the pyramidal tract has a triangular shape. reproductive tract Genital tract. respiratory tract The respiratory channel from mouth and nose to the alveoli in the lungs. reticulospinal tract Either of two tracts:the pontine reticulospinal tract or the medullary reticulospinal tract. The pontine reticulospinal tract contains axons originating in the pontine reticular formation; the axons run into the spinal cord along the ventral midline (the medial part of the anterior funiculus). The medullary reticulospinal tract contains axons originating in the medial two thirds of the hindbrain reticular formation; these axons run into the spinal cord in the anterior part of the lateral funiculus. retinohypothalamic tract The retinal ganglion cell axons from the optic nerves that leave the optic tract at the optic chiasm to innervate the suprachiasmatic nucleus (in the hypothalamus), which contains the pacemaker cells for circadian rhythms. rubrospinal tract An axon tract originating in the red nucleus of the midbrain. After leaving the red nucleus, axons cross to the contralateral side and descend into the spinal cord, where they terminate in the ventral horns. The red nucleus is innervated by axons from the motor cortices and the cerebellum, and the rubrospinal pathway is an extrapyramidal route to the spinal cord. A major function of rubrospinal axons is to set and adjust the muscle tone in the flexor muscles. sensory tract Any axon tract, usually traveling rostrally in the CNS, that transmits information related to somatic or visceral sensation. solitary tract Tractus solitarius. spinal tract of the trigeminal nerve A tract of somatic sensory axons from the trigeminal nerve that runs caudally from the midpontine level of the brainstem along the spinal nucleus of the trigeminal nerve. The tract carries pain and temperature information from the face, and its axons synapse topographically in the adjacent nucleus. In the transition zone between hindbrain and spinal cord, the spinal tract of the trigeminal nerve disappears into the tract of Lissauer although a few axons of the spinal tract extend as far caudally as spinal cord segment C3-C4. Synonym: trigeminal spinal tract spinocerebellartract The dorsal or the ventral spinocerebellar tract. spinothalamic tract The lateral or the anterior spinothalamic tract. Both tracts are bundles of axons running rostrally in the ventrolateral quadrant (the ventral half of the lateral funiculus) of the spinal cord, originating from contralateral dorsal horn neurons, and synapsing in the ventral posterolateral (VPL) nucleus of the thalamus. The lateral spinothalamic tract carries pain and temperature information from the body; the anterior spinothalamic tract (adjacent and dorsal to the lateral tract) carries light touch information. supraopticohypophyseal tract , supraopticohypophyial tractA tract of fibers arising from cell bodies located in supraoptic and paraventricular nuclei of the hypothalamus and terminating in the posterior lobe of the hypophysis. trigeminal mesencephalic tract Mesencephalic tract of the trigeminal nerve. trigeminal spinal tract Spinal tract of the trigeminal nerve. trigeminothalamic tract Trigeminal lemniscus. upper gastrointestinal tract The esophagus, stomach, and duodenum. urinary tract The channel followed by urine in the body, from the glomeruli in the kidneys through the ureters, bladder, and urethra. urogenital tract Genitourinary tract. uveal tract The vascular and pigmented tissues that constitute the middle layer of the wall of the eye. The tract comprises the iris, ciliary body, and choroid. Synonym: vascular tunic of the eye ventral spinocerebellar tract An axon tract originating in the contralateral dorsal and intermediate horns of the lower spinal cord, from the coccygeal through the lumbar segments. This tract runs in the lateral funiculus of the spinal cord, recrosses the midline, and terminates in the ipsilateral vermis of the cerebellum. Synonym: anterior spinocerebellar tract ventricular outflow tract In the heart, the pathway through which blood is normally ejected from the ventricle. For the left ventricle, it includes the walls of the ventricle, the anterior leaflet of the mitral valve, the aortic valve, the ascending aorta, and the arch of the aorta. For the right ventricle, it includes the walls of the ventricle, the pulmonic valve, the pulmonary trunk, and the pulmonary arteries. vestibulospinal tract An axon tract that conveys balance and equilibrium information to the spinal cord from the vestibular nuclei in the brainstem. The medial vestibulospinal tract is the continuation of the medial longitudinal fasciculus (MLF) caudally into the spinal cord below the cervical levels; it runs along the medial margin of the ventral quadrant of the cord. The lateral vestibulospinal tract runs caudally in an anterior band in the ventral and ventrolateral quadrant of the spinal cord. vocal tract The tissues and organs that produce human vocalizations, including lips, tongue, mouth, nasal cavities, pharynx, and larynx. Gowers, Sir William Richard, English neurologist, 1845-1915. Gowers column - a bundle of fibers that conveys proprioceptive and exteroceptive information largely from the opposite lower extremity. Synonym(s): anterior spinocerebellar tract; Gowers tractGowers contraction - contraction of the calf muscles when the anterior surface of the leg is struck. Synonym(s): front-tap contractionGowers disease - a distal type of progressive muscular dystrophy. Synonym(s): saltatory spasmGowers solution - solution used to count red blood cells.Gowers syndrome - syndrome consisting of palpitation, chest pain, respiratory difficulties, and disturbances in gastric motility, now considered psychogenic. Synonym(s): vagal attack; vasovagal attackGowers tract - Synonym(s): Gowers column
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