Hawaii Massage License Practice Exam

Which nerve supplies the deep muscles of the foot and toes?

1. Calcaneal nerve

2. Plantar nerve

3. Digital nerve

4. Fibular nerve

The correct answer is: Plantar nerve

The plantar nerve is the correct answer as it specifically supplies the deep muscles located in the foot and toes. This nerve arises from the tibial nerve and is responsible for innervating the majority of the intrinsic muscles of the foot, which are crucial for movements such as walking and maintaining balance. The plantar nerve branches into the medial and lateral plantar nerves, each of which further divides to innervate various muscles in the foot. This includes not only the flexor muscles but also the interosseous muscles, which are vital for fine motor control of the toes. The proper function of these muscles is essential for overall foot mechanics. While other nerves, like the calcaneal nerve and digital nerve, have specific roles—such as providing sensation or motor function in limited areas—they do not have the same broad responsibility for innervating the deep muscles of the foot. The fibular nerve, primarily associated with the lateral compartment of the leg and the muscles of the lower leg, does not innervate the intrinsic muscles of the foot. Therefore, the plantar nerve stands out as the primary nerve responsible for the deep muscular innervation needed for foot and toe movement.