1. Which of the following is not a flat bone?
a. Scapula
b. Sternum
c. Mandible
d. Frontal bone
The answer is C, Mandible. The mandible (lower jaw bone) is classified as an irregular bone.
2. Which of the following is not a characteristic of long bones?
a. They are always long in length.
b. They are longer than they are wide.
c. They sometimes contain spongy bone at the ends.
d. They are more numerous than any other bone type.
The answer is A: They are always long in length, which is incorrect. Long bones are longer than they are wide,
but they can be relatively short in overall length. For example, the finger bones (phalanges) are classified as lon
bones, but they are very short in size.
3. Anatomists classify the tarsals as what type of bone?
a. Long bone
b. Short bone
c. Irregular bone
d. Sesamoid bone
The answer is B, short bone. The tarsals are the bones in the foot, and they have a cube shape to them, making
them short bones.
4. Which of the following is not an irregular bone?