The Surfaces of the cerebellum and brain stem

Anterior aspect

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Image #23-6

The Surfaces of the cerebellum and brain stem Anterior aspect The brain stem has been cut transversely through the mesencephalon. The right cerebellar hemisphere has been stripped of meninges and vessels to expose the pattern of cerebellar folia and sulci. The basilar artery has been removed, but the cut ends of pontine and mesencephalic branches as well as the superior cerebellar arteries have been left. 1 . Superior semilunar lobe (crus I ansiform lobule) 2 . Posterior superior fissure 3 . Posterior part quadrangular lobule (posterior semilunar lobule) 4 . Primary fissure 5 . Anterior part quadrangular lobule (anterior semilunar lobule) 6 . Red nucleus and brachium conjunctivum (superior cerebellar peduncle) 7 . Posterior recess interpeduncular fossa 8 . Pons 9 . Posterior cerebellar incisure 10 . Culmen of monticulus 11 . Anterior cerebellar incisure 12 . Cerebral aqueduct 13 . Substantia nigra 14 . Cerebral peduncle 15 . Horizontal cerebellar sulcus 16 . Superior cerebellar artery