pyramidal tract crossed
Look at other dictionaries:
crossed pyramidal tract — n LATERAL CORTICOSPINAL TRACT … Medical dictionary
crossed pyramidal tract — noun : a tract of motor nerve fibers in the lateral column of the spinal cord … Useful english dictionary
tract — An elongated area, e.g., path, track, way. SEE ALSO: fascicle. SYN: tractus. [L. tractus, a drawing out] alimentary t. SYN: digestive t.. anterior corticospinal t. uncrossed fibers forming a small bundle in the anterior funiculus of the … Medical dictionary
pyramidal — 1. Of the shape of a pyramid. 2. Relating to any anatomical structure called pyramid. * * * py·ram·i·dal pə ram əd əl adj 1) of, relating to, or having the form of a pyramid 2) of, relating to, or affecting an anatomical pyramid esp. of the… … Medical dictionary
Lateral corticospinal tract — labeled in red at upper left. Latin tractus corticospinalis lateralis, fasciculus cerebrospinalis lateralis … Wikipedia
lateral corticospinal tract — n a band of nerve fibers that descends in the posterolateral part of each side of the spinal cord and consists mostly of fibers arising in the motor cortex of the contralateral side of the brain and crossing over in the decussation of pyramids… … Medical dictionary
direct cerebellar tract — noun : a tract of fibers in the posterior lateral part of the spinal cord that is external to the crossed pyramidal tract, that arises from the cells of the nucleus dorsalis, and that passes through the restiform body of the medulla to the… … Useful english dictionary
Reflex — A reaction that is involuntary. The corneal reflex is the blink that occurs with irritation of the eye. The nasal reflex is a sneeze. * * * 1. An involuntary reaction in response to a stimulus applied to the periphery and transmitted to the… … Medical dictionary
Decussation of pyramids — Brain: Decussation of pyramids Deep dissection of brain stem. Lateral view. ( pyramidal tract visible in red, and pyramidal decussation labeled at lower right.) Latin decussatio pyramidum Gray s … Wikipedia
List of anatomical topics — This page aims to list articles related to anatomy. This list is not necessarily complete or up to date if you see an article that should be here but isn t (or one that shouldn t be here but is), please update the page accordingly. NOTOC A… … Wikipedia
