commissure
51Meynert cells commissure etc. — Mey·nert cells, commissure, etc. (miґnərt) [Theodor Herman Meynert, German neurologist and psychiatrist in Vienna, 1833–1892] see under cell and commissure, and see nucleus basalis telencephali and tractus habenulointerpeduncularis …
52circumesophageal commissure — The major commissure of the nervous system of many invertebrates to which and from which ramify anteriorly and posteriorly directed nerves and nerve cords; sometimes called the nerve ring …
53tritocerebral commissure — see postesophageal commissure …
54anterior commissure — n a band of nerve fibers crossing from one side of the brain to the other just anterior to the third ventricle * * * commissura anterior …
55gray commissure — n a transverse band of gray matter in the spinal cord appearing in sections as the transverse bar of the H shaped mass of gray matter * * * substantia intermedia centralis medullae spinalis …
56habenular commissure — n a band of nerve fibers situated in front of the pineal gland that connects the habenular nucleus on one side with that on the other …
57hippocampal commissure — n a triangular band of nerve fibers joining the two crura of the fornix of the rhinencephalon anteriorly before they fuse to form the body of the fornix called also lyra, psalterium * * * commissura fornicis …
58posterior commissure — n a bundle of white matter crossing from one side of the brain to the other just rostral to the superior colliculi and above the opening of the aqueduct of Sylvius into the third ventricle * * * commissura posterior …
59Ganser commissure — the anterior supraoptic commissure; see supraoptic c s …
60Gudden commissure — the ventral, or inferior, supraoptic commissure; see supraoptic c s …