Block 4-1a Osteology and Arthrology of the Skull
1. The skull measures approximately 17.5 cm from sides and 15 cm front to back.
a. True
b. False
2. ______ is the articulation of the frontal bones and 2 parietal bones.
a. Sagittal suture
b. Coronal suture
c. Lambdoidal suture
d Squamosal suture
3. ______ is the articulation of the 2 parietal bones and 2 temporal bones.
a. Squamosal suture
b. Coronal suture
c. Sagittal suture
d. Lambdoidal suture
4. The Frontal sinuses are the air filled cavities within the frontal bone.
a. True
b. False
5. _______ are inferior to the parietals. They make up a portion of the sides and
middle floor of the cranium.
a. Parietal bones
b. Frontal bone
c. Temporal bones
d. Dog bone
6. ______ serves as an attachment point for ligaments of the pharynx and tongue.
a. Mastoid process
b. Zygomatic process
c. External Acoustic Meatus
d. Styloid process
7. The external occipital protuberance is the prominent bump on the external surface
and is palpable on the posterior base of the cranium.
a. True
b. False
8. This bone is a double winged, bat shaped bone that forms the mid cranial floor. It
also articulates with each of the other seven bones of the cranium.
a. Sphenoid bone
b. Occipital bone
c. Parietal bone
d. Funny bone
9. _______ is the two openings located on each lesser wing just anterior and lateral
to the body of the sphenoid bone.
a. Optic foramen
b. Pterygoid process
c. Clinoid process
d. Sella turcica
10. ______ is a smooth bony projection extends superiorly from the cribiform plate
and serves as an attachment point for the anterior portion of the brain.
a. Cribiform plate
b. Cristi Galli
c. Perpendicular plate
d. Both A and B