Bassett Collection of Stereoscopic Images of Human Anatomy

Exploration of the brain from the medial aspect

Optic tract, internal capsule, medial surface of temporal lobe and posterior cerebral artery

Image #17-6

KEYWORDS: Brain, Peripheral nervous system, Telencephalon, Vasculature.

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

Exploration of the brain from the medial aspect
Optic tract, internal capsule, medial surface of temporal lobe and posterior cerebral artery
A cut has been made across the junction of the internal capsule with the cerebral peduncle, and the brain stem and cerebellum have been removed from the specimen. The optic tract is now exposed in its course toward the lateral geniculate body, not yet dissectd. Relations of the posterior cerebral artery and medial parts of the temporal lobe are shown.
1 . Internal capsule (caudate nucleus removed)
2 . Stria terminalis
3 . Broken ends of fibers of thalamic radiation
4 . Broken ends of fibers passing from caudate nucleus into internal capsule
5 . Internal capsule (thalamus removed)
6 . Anterior commissure
7 . Ansa lenticularis (cut across)
8 . Internal capsule (cut across)
9 . Optic tract
10 . Choroidal artery (anterior)
11 . Optic chiasm
12 . Posterior cerebral artery (cut across at its origin from basilar artery)
13 . Posterior communicating artery
14 . Radiation corpus callosum (partially removed)
15 . Lateral ventricle
16 . Caudate nucleus (tail)
17 . Fornix (crus) (cut across)
18 . Thalamus (same cut surface seen previously)
19 . Ventral posterior lateral nucleus
20 . Basal vein
21 . Limbic lobe
22 . Posterior cerebral artery continuing into parietooccipital fissure
23 . Medial geniculate body (cut across)
24 . Anterior and posterior temporal branches of posterior cerebral artery
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