Which nerve motor point is at the base of the shin, just above the instep?

Which nerve motor point is at the base of the shin, just above the instep?

• A. Median nerve motor point
• B. Superficial peroneal nerve motor point
• C. Suprascapular nerve motor point
• D. Common peroneal nerve motor point

Answer: (B)

Motor points are the spots where a brief stimulus most effectively causes a muscle to contract because they lie over the nerve branches that supply that muscle. The base of the shin, just above the instep, corresponds to the superficial peroneal nerve motor point. This nerve travels along the lower leg and becomes superficial on the dorsum of the foot, innervating muscles that control foot movement (like dorsiflexion and eversion). Stimulating this point triggers a quick, localized contraction useful in control techniques. The median nerve motor point is located in the forearm/hand region; the suprascapular nerve motor point is near the shoulder; and the common peroneal nerve motor point is near the fibular neck on the lateral leg, not at the shin just above the instep. Therefore, the described location best matches the superficial peroneal nerve motor point.

Motor points are the spots where a brief stimulus most effectively causes a muscle to contract because they lie over the nerve branches that supply that muscle. The base of the shin, just above the instep, corresponds to the superficial peroneal nerve motor point. This nerve travels along the lower leg and becomes superficial on the dorsum of the foot, innervating muscles that control foot movement (like dorsiflexion and eversion). Stimulating this point triggers a quick, localized contraction useful in control techniques. The median nerve motor point is located in the forearm/hand region; the suprascapular nerve motor point is near the shoulder; and the common peroneal nerve motor point is near the fibular neck on the lateral leg, not at the shin just above the instep. Therefore, the described location best matches the superficial peroneal nerve motor point.