7.
When a patient is seated in the dental chair, the headrest should support the:
a. Ethmoid bone.
b. Temporal bones.
c.
Occipital bone.
d. Parietal bones.
8.
An opening in a bone which serves as a passageway for nerves and blood
vessels is a:
a. Foramen.
b. Sinus.
c.
Process.
d. Fossa.
e. Meatus.
9.
A hollow or depression in a bone is a(n):
a. Foramen.
b. Suture.
c.
Orbit.
d. Meatus.
e. Fossa.
MD0501
2-25