Exploration of the meninges and brain in situ
Branches of posterior communicating artery within basal cisterns
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Image #3-2
Exploration of the meninges and brain in situ
Branches of posterior communicating artery within basal cisterns
The brain stem has now been cut across through the rostral part of the mesencephalon, the optic tract removed and the optic chiasm lifted somewhat out of its normal position. Numerous small arterial branches of the posterior communicating and posterior cerebral arteries which pass into the hypothalamus and interpeduncular fossa cross the basal cisterns (cisternae chiasmatis et interpeduncularis). Nearly the entire extent of the third ventricle is visible.
- Olfactory tract (cut across)
- Inferior cerebral vein
- Lesser wing sphenoid bone (covered by dura)
- Middle cerebral artery (cut across)
- Anterior cerebral artery left
- Internal carotid artery
- Chiasmatic cistern
- Upper pointer: Choroidal artery (anterior) (cut across) Lower pointer: Posterior communicating artery
- Optic tract (cut across and lifted up)
- Oculomotor nerve (III)
- Posterior cerebral artery
- Branch of posterior cerebral artery to brain stem (lateral central branch)
- Tributaries of basal vein which passed into tip of inferior horn of lateral ventricle
- Substantia nigra
- Red nucleus
- Basal vein [Rosenthal]
- Tentorium cerebelli
- Continuation of main trunk of posterior cerebral artery
- Anterior cerebral artery right
- Falx cerebri
- Cingulate gyrus
- Pericallosal branch of anterior cerebral artery
- Anterior commissure
- Free part of column of fornix
- Ventricular surface of hypothalamus
- Mamillary body (cut across)
- Massa intermedia
- Cerebral peduncle
- Internal cerebral vein
- Cerebral auditory aqueduct
- Posterior commissure
- Corpus callosum (splenium)