What cranial nerves are in the anterior cranial fossa?
- Olfactory Nerve (CN I)
- Optic Nerve (CN II)
- Oculomotor Nerve (CN III)
- Trochlear Nerve (CN IV)
- Trigeminal Nerve (CN V)
- Abducens Nerve (CN VI)
- Facial Nerve (CN VII)
What passes through cranial fossa?
What is the function of a cranial fossa?
Anatomical terminology The anterior cranial fossa is a depression in the floor of the cranial base which houses the projecting frontal lobes of the brain.
What is an example of a fossa?
Fossa – A shallow depression in the bone surface. Here it may receive another articulating bone or act to support brain structures. Examples include trochlear fossa, posterior, middle, and anterior cranial fossa.
What nerve passes through the hypoglossal canal?
Function. The hypoglossal canal transmits the hypoglossal nerve from its point of entry near the medulla oblongata to its exit from the base of the skull near the jugular foramen.
What nerves are in the posterior fossa?
Some authors describe innervation of the posterior fossa dura by the facial and glossopharyngeal nerves,36 as well as from the hypoglossal and vagus nerves. The branch from the vagus starts from the superior ganglion, follows the posterior meningeal artery, and supplies the posterior fossa dura.
What is in each cranial fossa?
The anterior cranial fossa is the most anterior and the shallowest of the three cranial fossae. It overlies the orbits and contains the frontal lobes of the brain. Anteriorly, the anterior fossa is bounded by the frontal bone, which also forms the majority of the floor for this space.
What is the third nerve?
The oculomotor nerve is the third cranial nerve (CN III). It allows movement of the eye muscles, constriction of the pupil, focusing the eyes and the position of the upper eyelid. Cranial nerve III works with other cranial nerves to control eye movements and support sensory functioning.