Lane Medical Library

Bassett Collection of Stereoscopic Images of Human Anatomy

Exploration of a brain cut in frontal section at the splenium of the corpus callosum

Posterior commissure; fasciculus retroflexus; central tegmental tract; fibers within pulvinar

Image #22-7

KEYWORDS: Brain, Diencephalon, Midbrain.

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Higher resolution images are available for a fee. Contact Drew Bourn, PhD, MLIS.

Exploration of a brain cut in frontal section at the splenium of the corpus callosum
Posterior commissure; fasciculus retroflexus; central tegmental tract; fibers within pulvinar
The posterior parts of the thalamus have been scraped away through a window cut out in such a way that the inferior border of the pulvinar and the stratum zonale covering its superior surface are both preserved. The broken ends of fibers which passed from the pulvinar and posterolateral nucleus into the retrolenticular part of the internal capsule are visible in the lateral part of this dissection.
1 . Corpus callosum
2 . Fornix (crus)
3 . Pulvinar
4 . Superior colliculus
5 . Cerebral aqueduct and entrance (with posterior commissure immediately above) and central gray matter
6 . Brachium conjunctivum (superior cerebellar peduncle) (cut across)
7 . Fourth ventricle
8 . Central part lateral ventricle
9 . Choroidal artery (anterior)
10 . Dissected area of pulvinar and posterolateral nucleus of thalamus
11 . Inferior margin of pulvinar and a thalamic branch of the posterior cerebral artery
12 . Retroflex fasciculus
13 . Medial lemniscus approaching ventral posterior lateral nucleus of thalamus
14 . Brachium conjunctivum (superior cerebellar peduncle)
15 . Central tegmental tract
16 . Brachium pontis (middle cerebellar peduncle)
17 . Flocculus
18 . Inferior temporal sulcus

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