Question

what is the expected response to the triceps - jerk reflex?
multiple choice
flexion of the shoulder
flexion of the forearm
plantar flexion
extension of the forearm

Explanation:

The triceps - jerk reflex is a stretch reflex. When the triceps tendon is tapped (stimulated), the triceps muscle (which is responsible for forearm extension) contracts. Flexion of the shoulder is not related to the triceps - jerk reflex. Flexion of the forearm is mainly due to biceps muscle action. Plantar flexion is related to the muscles of the foot and ankle. The triceps muscle's main action is forearm extension.

Answer:

Extension of the forearm