Bassett Collection of Stereoscopic Images of Human Anatomy

Exploration of the brain from its basal aspect

Cavity of third ventricle; continuity of choroid plexus of third and lateral ventricles

Image #7-5

KEYWORDS: Brain, Diencephalon, Ventricules.

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Exploration of the brain from its basal aspect
Cavity of third ventricle; continuity of choroid plexus of third and lateral ventricles
The cavity of the third ventricle has been exposed from the right side by the resection fo the remaining thalamic structures. No massa intermedia is present in this specimen. The brain is tilted somewhat so that the view is toward the midline from below. The choroid plexus of the third ventricle is pulled away from its attachement along the left thalamus. The left interventricular foramen is visible.
1 . Septum pellucidum
2 . Corpus callosum (ventricular surface)
3 . Superior occipitofrontal fasciculus
4 . Corona radiata (cut across)
5 . Choroid plexus third ventricle
6 . Fornix (body)
7 . Choroid plexus lateral ventricle
8 . Area of hippocampal commissure
9 . Choroidal branch of posterior cerebral artery
10 . Fornix (crus) (cut across)
11 . Anterior commissure (cut across)
12 . Parolfactory area (dissected)
13 . Interventricular foramen right (exposed by removal of the thalamus)
14 . Anterior perforated substance
15 . Interventricular foramen left
16 . Fornix (column)
17 . Hypothalamus (medial surface)
18 . Mamillary body
19 . Thalamus (medial surface)
20 . Hypothalamic sulcus
21 . Stria medullaris thalami
22 . Transverse cerebral fissure (exposed by separation of choroid plexus of third ventricle from thalamus)
23 . Cerebral peduncle
24 . Superior cerebellar artery
25 . Posterior cerebral artery (cut across)
26 . Trochlear nerve (IV) (displaced)
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