Bassett Collection of Stereoscopic Images of Human Anatomy

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Exploration of those parts of the brain supplied by the posterior cerebral artery

Superior quadrigeminal brachium and pulvinar (dissected)

Image #21-3

KEYWORDS: Brain, Diencephalon, Telencephalon.

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

Exploration of those parts of the brain supplied by the posterior cerebral artery

Superior quadrigeminal brachium and pulvinar (dissected)

The slight elevation produced by the superior quadrigeminal brachium (18), which extends between the lateral geniculate body and the superior colliculus, is partially preserved along the lower margin of the dissection of the pulvinar. Some of the delicate fibers of this system can be seen in the view. Immediately above the superior quadrigeminal brachium, fibers (7) are exposed which pass medially toward the pretectal region. The lateral extent of these fibers could not be traced. The pulvinar and posterolateral nuclei of the thalamus are dissected to demonstrate the vast numbers of fibers passing laterally from these into the retrolenticular part of the internal capsule as the posterior stalk of the thalamus.

1 .	Parieto-occipital branch of posterior cerebral artery
2 .	Cingulum (cut across)
3 .	Cingulate gyrus
4 .	Corpus callosum (splenium)
5 .	Stratum zonale thalami (cut edge)
6 .	Fibers within pulvinar
7 .	Fibers passing medially toward pretectal region
8 .	Superior colliculus
9 .	Cerebral peduncle
10 .	Amygdaloid nucleus (dissected)
11 .	Middle cerebral artery
12 .	Tapetum (cut across)
13 .	External sagittal stratum
14 .	Fornix (crus) (cut across)
15 .	Stria terminalis (cut across)
16 .	Caudate nucleus (tail) (cut across)
17 .	Fibers from stratum zonale thalami
18 .	Superior quadrigeminal brachium
19 .	Medial geniculate body
20 .	Lentiform nucleus
21 .	Inferior occipitofrontal fasciculus
22 .	Uncinate fasciculus (cut end)
23 .	Fibers of uncinate fasciculus