Bassett Collection of Stereoscopic Images of Human Anatomy

Exploration of the meninges and brain in situ

Close-up view of diaphragma sellae and infundibulum

Image #3-4

KEYWORDS: Brain, Diencephalon, Vasculature, Ventricules.

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

Exploration of the meninges and brain in situ

Close-up view of diaphragma sellae and infundibulum

The optic chiasm and hypothalamus have been sectioned in the mid-sagittal plane. The arachnoid membrane has been cleared from the area in which the infundibulum (19) extends downward through the diaphragma sellae (20). Several subarachnoid cisterns are visible. The interpeduncular cistern lies posterior to (to the right of) the infundibulum, the chiasmatic cistern anterior to (to the left of) the infundibulum and the cistern of the lamina terminalis above the anterior cerebral artery (1).

1 .	Anterior cerebral artery right
2 .	Lamina terminalis
3 .	Gyrus rectus
4 .	Anterior communicating artery
5 .	Right optic nerve (II)
6 .	Optic chiasm
7 .	Hypophysis
8 .	Left optic nerve (II) (cut across)
9 .	Internal carotid artery left
10 .	Anterior clinoid process
11 .	Anterior commissure
12 .	Third ventricle
13 .	Mamillary body
14 .	Optic recess
15 .	Infundibular recess
16 .	Tuber cinereum
17 .	Arteries within interpeduncular fossa (medial central branches of posterior cerebral artery)
18 .	Dorsum sellae (covered with dura)
19 .	Infundibulum
20 .	Diaphragma sellae (sinus circularis visible close to free margin of diaphragm)
21 .	Posterior cerebral artery left and cerebral peduncle
22 .	Posterior communicating artery
23 .	Oculomotor nerve (III)
24 .	Posterior clinoid process
25 .	Tentorium cerebelli