Question

what is the medical term for closure of a joint angle, or reduction of the angle between the two bones?
○ a. extension
○ b. supination
○ c. pronation
○ d. flexion

Explanation:

To solve this, we analyze each option:

• Option a (extension): Increases the joint angle (opposite of what's asked).
• Option b (supination): Rotation of the forearm/foot, not about joint angle closure.
• Option c (pronation): Also a rotational movement, not about joint angle reduction.
• Option d (flexion): Defined as the closure of a joint angle, reducing the angle between two bones (matches the description).

Answer:

d. flexion