Bassett Collection of Stereoscopic Images of Human Anatomy

Exploration of the cerebellum and brain stem from the medial aspect

Brachium conjunctivum

Image #27-2

KEYWORDS: Brain, Cerebellum, Medulla, Pons.

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Exploration of the cerebellum and brain stem from the medial aspect
Brachium conjunctivum
The wall of the cerebral aqueduct and fourth ventricle has been scraped away and much of the tegmentum of the mesencephalon removed to reveal the course of the brachium conjunctivum to its decussation (4). Dissection of the basal part of the pons shows the longitudinal course of corticopontine and corticospinal fibers.
1 . Superior colliculus
2 . Mesencephalic tegmentum
3 . Central lobule
4 . Decussation of superior cerebellar peduncle
5 . Anterior medullary velum (lingula removed)
6 . Brachium conjunctivum (superior cerebellar peduncle)
7 . Medial longitudinal fasciculus
8 . Longitudinal fasciculus (pryamid pons)
9 . Basilar artery
10 . Medulla oblongata
11 . Vertebral artery left (cut across)
12 . Primary fissure
13 . Culmen
14 . Medullary substance of central lobule
15 . Fastigial nucleus
16 . Posterior medullary velum (nodulus removed)
17 . Pyramid (vermis)
18 . Uvula (vermis)
19 . Choroid plexus fourth ventricle
20 . Posterior inferior cerebellar artery
21 . Tonsil (ventral paraflocculus)
22 . Central canal
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