Lane Medical Library

Bassett Collection of Stereoscopic Images of Human Anatomy

Exploration of the cerebellum from above and behind

Internal genu of facial nerve, nucleus of abducens nerve and tractus solitarius

Image #25-1

KEYWORDS: Brain, Cerebellum, Medulla, Peripheral nervous system, Pons.

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

Exploration of the cerebellum from above and behind
Internal genu of facial nerve, nucleus of abducens nerve and tractus solitarius
The floor of the rhomboid fossa has been dissected on the right side to expose the internal genu of the facial nerve (12) which passes around the nucleus of the abducens nerve (13). The spinal tract of the trigeminal nerve (15) has been divided to expose the root of the facial nerve (14) as it continues toward the point of exit of the facial nerve (16) behind the brachium pontis.
1 . Median eminence rhomboid fossa
2 . Superior fovea rhomboid fossa
3 . Origin of roots of facial nerve and facial colliculus
4 . Taenia fourth ventricle
5 . Lateral recess of rhomboid fossa
6 . Inferior fovea rhomboid fossa
7 . Wing of gray matter
8 . Calamus scriptorius
9 . Median sulcus of rhomboid fossa
10 . Brachium conjunctivum (superior cerebellar peduncle) (cut across)
11 . Brachium pontis (middle cerebellar peduncle) (cut across)
12 . Genu internal roots of facial nerve
13 . Nucleus abducens nerve
14 . Second part roots of facial nerve
15 . Spinal trigeminal tract (divided)
16 . Facial nerve
17 . Tractus solitarius
18 . Restiform body (inferior cerebellar peduncle) (cut across)
19 . Vagus nerve (X)

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