QuestionSBA
QuestionChoice
Incorrect. The hypoglossal nerve (CN XII) leaves the medulla of the brainstem between the pyramid and olive. It passes through the hypoglossal canal to leave the cranium inferiorly.
10009233
d
Hypoglossal nerve
QuestionChoice
Incorrect. The glossopharyngeal nerve (CN IX) leaves the pontine-medullary region of the brainstem. It passes through the anteromedial aspect of the jugular foramen to leave the cranium inferiorly.
10009232
c
Glossopharyngeal nerve
QuestionChoice
Incorrect. The oculomotor nerve (CN III) leaves the tectum of the midbrain and pierces the roof of the cavernous sinus to run in its lateral wall. It emerges as superior and inferior divisions which pass through the superior orbital fissure to enter the orbit.
10009234
e
Oculomotor nerve
QuestionChoice
Correct. The facial nerve (CN VII) leaves the brainstem at the cerebellopontine angle as a larger motor root and a smaller nervus intermedius root. They enter the internal acoustic meatus with the vestibulocochlear nerve (CN VIII). The two roots combine to form the definitive CN VII nerve within the petrous temporal bone.
10009230
a
Facial nerve
QuestionChoice
Incorrect. The trigeminal nerve (CN V) leaves the mid-pontine region of the brainstem as a larger sensory root and a smaller motor root. They pass forward below the tentorium cerebelli through the oval opening in the dura to the trigeminal impression, located at the apex of the petrous temporal bone.
10009231
b
Trigeminal nerve
Concept
Chapter
2693
5323
Cranial nerve VII
Topic
196
Neuroanatomy
14393
Picture
1753
48 - Cranial nerve VII.png
images/1f7dqnkt1682950692718.jpg
images/1f7dqnkt1682950692718_256.jpg
images/1f7dqnkt1682950692718_512.jpg
rBgOFQT3qGd4+WmYiIqViAl4koAo
Topic
196
Neuroanatomy
Identify the labelled structure.

[lightgallery]
a