Interpeduncular

The depressed area between the crura is termed the interpeduncular fossa, and consists of a layer of grayish substance, the posterior perforated substance, which is pierced by small apertures for the transmission of bloodvessels; its lower part lies on the ventral aspect of the medial portions of the tegmenta, and contains a nucleus named the interpeduncular ganglion (page 802); its upper part assists in forming the floor of the third ventricle. ❋ Unknown (1918)

The axons of these cells are grouped together in a bundle, the fasciculus retroflexus of Meynert, which passes ventrally medial to the red nucleus and terminates in a small medial ganglion in the substantia perforata posterior, immediately in front of the pons, called the interpeduncular ganglion. ❋ Unknown (1918)

It encloses the cerebral peduncles and the structures contained in the interpeduncular fossa, and contains the arterial circle of Willis. ❋ Unknown (1918)

Behind the last, the floor is formed by the interpeduncular fossa and the tegmenta of the cerebral peduncles. ❋ Unknown (1918)

Most of its fibers are, however, directed downward and form a bundle, the fasciculus retroflexus of Meynert, which passes medial to the red nucleus, and, after decussating with the corresponding fasciculus of the opposite side, ends in the interpeduncular ganglion. ❋ Unknown (1918)

The medial surface of the peduncle forms the lateral boundary of the interpeduncular fossa, and is marked by a longitudinal furrow, the oculomotor sulcus, from which the roots of the oculomotor nerve emerge. ❋ Unknown (1918)

The interpeduncular ganglion is a median collection of nerve cells situated in the ventral part of the tegmentum. ❋ Unknown (1918)

The principal gray masses of the tegmentum are the red nucleus and the interpeduncular ganglion; of its fibers the chief longitudinal tracts are the superior peduncle, the medial longitudinal fasciculus, and the lemniscus. ❋ Unknown (1918)

The basal vein passes backward around the cerebral peduncle, and ends in the internal cerebral vein (vein of Galen); it receives tributaries from the interpeduncular fossa, the inferior horn of the lateral ventricle, the hippocampal gyrus, and the mid-brain. ❋ Unknown (1918)

The interpeduncular ganglion has rather large nerve cells whose axons curve backward and downward as the tegmental bundle of Gudden, to end partly in the dorsal tegmental nucleus and surrounding gray substance where they come into relation with association neurons and the dorsal longitudinal bundle of Schütz. ❋ Unknown (1918)

At the mesencephalic level, a large number of Fos-GAD double-labeled neurons was observed in the interpeduncular nucleus (IP) specifically in the PSR group. ❋ Unknown (2009)