MEDRADSC 3I03 Lecture Notes - Lecture 21: Abducens Nerve, Hypoglossal Nerve, Pharynx

• School: McMaster University
• Department: Medical Radiation Sciences
• Course: MEDRADSC 3I03
• Professor: Alana Trainor

Document Summary

The anterior (frontal) fossa is made of which bones: frontal, ethmoid, lesser wing of sphenoid. What does the middle (temporal) fossa contain: pituitary gland, hypothalamus, temporal lobes of brain. If in the middle fossa midline structures: made up by the temporal bone, petrous ridge, forms the posterior back end boundary of the middle fossa, forms the anterior border of the fossa. Which suture lies between the occipital bone and the parietal bones: lamboidal suture, suture that lies between the two parietal bones sagittal suture, frontal bone comes up to meet the parietal coronal suture, no axial suture. Anterior fossa ethmoid bone, piriform plate (horizontal plate) What fossa is the optic foramen in: middle, long lesser wing does, optic canal is not on the surface of lesser wing, optic nerve travels through it, also add in the ophthalmic artery. It tips around in on the upper side of the lesser wing the middle fossa.