extrapyramidal tract

tract

[trakt] a longitudinal assemblage of tissues or organs, especially a number of anatomic structures arranged in series and serving a common function, such as the gastrointestinal or urinary tract; also used in reference to a bundle (or fasciculus) of nerve fibers having a common origin, function, and termination within the central nervous system.alimentary tract alimentary canal" >alimentary canal.biliary tract the organs, ducts, and other structures that participate in secretion (the liver), storage (the gallbladder), and delivery (hepatic and bile ducts) of bile into the duodenum. See illustration.

Anatomy of the gallbladder and biliary tract. From Aspinall and Taylor-Robinson, 2002.corticospinal t's two groups of nerve fibers (the anterior and lateral corticospinal tracts) that originate in the cerebral cortex and run through the spinal cord.digestive tract alimentary canal" >alimentary canal.dorsolateral tract a group of nerve fibers in the lateral funiculus of the spinal cord dorsal to the posterior column.extrapyramidal tract extrapyramidal system.gastrointestinal tract the stomach and intestine in continuity; see also digestive system.iliotibial tract a thickened longitudinal band of fascia lata extending from the tensor muscle downward to the lateral condyle of the tibia.intestinal tract see intestinal tract.optic tract the nerve tract proceeding backward from the optic chiasm, around the cerebral peduncle, and dividing into a lateral and medial root, which end in the superior colliculus and lateral geniculate body, respectively.pyramidal t's collections of motor nerve fibers arising in the brain and passing down through the spinal cord to motor cells in the anterior horns.respiratory tract system" >respiratory system.urinary tract the organs and passageways concerned in the production and excretion of urine from the kidneys to the meatus" >urinary meatus; see also system" >urinary system.uveal tract the vascular tunic of the eye, comprising the choroid, ciliary body, and iris.

extrapyramidal tract

Any of the axon tracts of the extrapyramidal system. See: extrapyramidal systemSee also: tract

单词	extrapyramidal tract
释义	DictionarySeetract extrapyramidal tract tract [trakt] a longitudinal assemblage of tissues or organs, especially a number of anatomic structures arranged in series and serving a common function, such as the gastrointestinal or urinary tract; also used in reference to a bundle (or fasciculus) of nerve fibers having a common origin, function, and termination within the central nervous system.alimentary tract alimentary canal" >alimentary canal.biliary tract the organs, ducts, and other structures that participate in secretion (the liver), storage (the gallbladder), and delivery (hepatic and bile ducts) of bile into the duodenum. See illustration.Anatomy of the gallbladder and biliary tract. From Aspinall and Taylor-Robinson, 2002.corticospinal t's two groups of nerve fibers (the anterior and lateral corticospinal tracts) that originate in the cerebral cortex and run through the spinal cord.digestive tract alimentary canal" >alimentary canal.dorsolateral tract a group of nerve fibers in the lateral funiculus of the spinal cord dorsal to the posterior column.extrapyramidal tract extrapyramidal system.gastrointestinal tract the stomach and intestine in continuity; see also digestive system.iliotibial tract a thickened longitudinal band of fascia lata extending from the tensor muscle downward to the lateral condyle of the tibia.intestinal tract see intestinal tract.optic tract the nerve tract proceeding backward from the optic chiasm, around the cerebral peduncle, and dividing into a lateral and medial root, which end in the superior colliculus and lateral geniculate body, respectively.pyramidal t's collections of motor nerve fibers arising in the brain and passing down through the spinal cord to motor cells in the anterior horns.respiratory tract system" >respiratory system.urinary tract the organs and passageways concerned in the production and excretion of urine from the kidneys to the meatus" >urinary meatus; see also system" >urinary system.uveal tract the vascular tunic of the eye, comprising the choroid, ciliary body, and iris. extrapyramidal tract Any of the axon tracts of the extrapyramidal system. See: extrapyramidal systemSee also: tract
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