Question

what differentiates extension from hyperextension?
a. extension bends joints in the opposite direction as hyperextension.
b. extension straightens a joint, and hyperextension bends it but in the opposite direction from flexion.
c. hyperextension straightens a joint, and extension bends it in the opposite direction from flexion.
d. both bend joints, but extension can be damaging.
please select the best answer from the choices provided.
a
b
c
d

Explanation:

• Extension: It is the movement that straightens a joint. For example, straightening the elbow is an extension movement.
• Hyperextension: It is an excessive extension of a joint beyond its normal range of motion. It bends the joint but in the opposite direction from flexion (flexion is the bending movement that decreases the angle between two body parts). For instance, if you bend your wrist backward too much, that is hyperextension.

Answer:

B. Extension straightens a joint, and hyperextension bends it but in the opposite direction from flexion.