rostral commissure
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commissure of rostral colliculus — commissura colliculi superioris … Medical dictionary
posterior 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 … Medical dictionary
part — A portion. SYN: pars [TA]. abdominal p. of aorta SYN: abdominal aorta. abdominal p. of esophagus [TA] the portion of the esophagus from where it passes through the diaphragm to the stomach. See … Medical dictionary
commissura anterior — [TA] anterior commissure: a bundle of myelinated nerve fibers passing transversely through the lamina terminalis and connecting symmetrical parts of the two cerebral hemispheres; it consists of a smaller anterior part (pars anterior commissurae… … Medical dictionary
area preoptica — [TA] preoptic area: several groups of cells in the median plane immediately below the rostral commissure of the telencephalon that are functionally related to the hypothalamus; called also preoptic region … Medical dictionary
precommissural septum — septum precommissurale a septum situated anterior to the rostral commissure of the cerebrum, corresponding in part to the paraterminal gyrus, which consists of dorsal, ventral, medial, and caudal nuclear groups; called also s. verum … Medical dictionary
lamina rostralis — rostral lamina: a thin membranous portion of the rostrum of the corpus callosum that passes from the rostrum to the lamina terminalis immediately in front of the anterior commissure … Medical dictionary
Nucleus — 1) In cell biology, the structure that houses the chromosomes. 2) In neuroanatomy, a group of nerve cells. * * * 1. In cytology, typically a rounded or oval mass of protoplasm within the cytoplasm of a plant or animal cell; it is surrounded by a… … Medical dictionary
fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with … Universalium
Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… … Universalium
