Exploration of the cerebellum and brain stem from the medial aspect
Brachium conjunctivum
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Image #27-2
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.
- Superior colliculus
- Mesencephalic tegmentum
- Central lobule
- Decussation of superior cerebellar peduncle
- Anterior medullary velum (lingula removed)
- Brachium conjunctivum (superior cerebellar peduncle)
- Medial longitudinal fasciculus
- Longitudinal fasciculus (pryamid pons)
- Basilar artery
- Medulla oblongata
- Vertebral artery left (cut across)
- Primary fissure
- Culmen
- Medullary substance of central lobule
- Fastigial nucleus
- Posterior medullary velum (nodulus removed)
- Pyramid (vermis)
- Uvula (vermis)
- Choroid plexus fourth ventricle
- Posterior inferior cerebellar artery
- Tonsil (ventral paraflocculus)
- Central canal