Bones of the Skull

Question 1

Frontal Bone

Answer 1

Forms the forehead. Superior part of the orbit; floor of anterior cranial fossa. Fused to the frontal bone by the coronal suture.

Question 2

Parietal Bone (2)

Answer 2

Two bones, fused together at the sagittal suture, each forming a side of the cranium. Posterolateral to frontal bone.

Question 3

Temporal Bone (2)

Answer 3

Two bones, each inferior to parietal bone on lateral skull.

Question 4

Occipital Bone

Answer 4

Forms floor and back walls of cranium. Most posterior bone of cranium.

Question 5

Zygomatic Process (2)

Answer 5

Bridge-like projection in squamous region in a temporal bone joining the zygomatic/cheek bone anteriorly.

Question 6

Mandibular Fossa (2)

Answer 6

Forms socket for mandibular condyle. Rounded depression on the inferior surface of the zygomatic process.

Question 7

Mastoid Process (2)

Answer 7

Rough projection in mastoid region of temporal bone, inferior and posterior to the external acoustic meatus.

Question 8

Jugular Foramen (2)

Answer 8

In petrous part of temporal bone; an opening medial to the styloid process through which the internal jugular vein and cranial nerves IX, X, and XI pass.

Question 9

Carotid Canal (2)

Answer 9

In petrous part of temporal bone; opening medial to the stlyoid process through which the internal carotid artery passes into the cranial cavity. Anterior to the jugular foramen.