Lecture 18: Bones and Joints of the Skull Flashcards
List the cranial bones
Frontal bone
Parietal bones (paired)
Occipital bone
Temporal bones (paired)
Sphenoid bone
Ethmoid bone
What bone forms the majority of the anterior cranial fossa?
Frontal bone
What are the bony landmarks of the frontal bone?
Glabella
Supra-orbital notch (foramen)
Orbital surface
What are the bony landmarks of the parietal bone?
Superior temporal line
Inferior temporal line
What bones form the posterior cranial fossa?
occipital bone and temporal bone
Where is the hypoglossal canal and what nerve does it carry?
antero lateral to the occipital condyles
carries the hypoglossal nerve (CN XII)
What is the frontal crest?
median ridge on the internal surface of the frontal bone
Where is the glabella?
prominance superior to the nose
What nerve comes through the supraorbital foramen?
CN V1 (opthalmic branch of the trigeminal nerve)
Where is the squamous portion of the temporal bone?
thin flat area adjacent to parietal and sphenoid bones
Where is the clivus located?
anterior to the foramen magnum
What bone has a greater and lesser wing separated by the superior orbital fissure?
Sphenoid
