pons

A bridge or bridge like structure; especially the p. Varolii, p. hepatis. Syn.: isthmus hepatis. A part of the liver which sometimes extends from the quadrate to the left lobe, cro ing the umbilical fi ure, p. Tarini. A lamina of gray matter at the bottom of the posterior perforated space at the base of the brain, between the corpora albicantia. It forms a portion of the floor of the third ventricle, p. Varolii. That division of the encephalon which connects the medulla oblong at a and the crura cerebri. It consists partly of longitudinal fibers continued above into the pes and tegmentum of the crura, partly of transverse fibers connecting the two cerebellar hemispheres, and partly of central gray nuclei. p. zygomatic us. The zygomatic arch. [Lat., pons, from ponere, to place.]