Questions: 4. Which bone type reinforces tendons to protect them from wear?
a. Flat bones
b. Sesamoid bones
c. Irregular bones
d. Long bones
Transcript text: 4. Which bone type reinforces tendons to protect them from wear?
a. Flat bones
b. Sesamoid bones
c. Irregular bones
d. Long bones
Solution
The answer is the second one (b): Sesamoid bones.
Explanation for each option:
a. Flat bones: These bones are typically thin, flattened, and somewhat curved. They provide protection and a broad surface for muscle attachment but do not reinforce tendons.
b. Sesamoid bones: These are small, round bones embedded within tendons. They protect tendons from wear and tear by reducing friction and modifying pressure. The patella (kneecap) is a common example.
c. Irregular bones: These bones have complex shapes that do not fit into other categories. They primarily provide protection and support but do not specifically reinforce tendons.
d. Long bones: These bones are longer than they are wide and primarily function to support weight and facilitate movement. They do not reinforce tendons.
Summary:
Sesamoid bones are the type of bones that reinforce tendons to protect them from wear.