DPM Anatomy & Physiology 3

Question 1

The sustentaculum tali is a shelf-like projection of which bone?

Accepted Answer

Calcaneus

Answer

The sustentaculum tali is a medial shelf projecting from the calcaneus that supports the head of the talus and provides attachment for the spring ligament.

Question 2

Which compartment of the leg contains the peroneus longus and peroneus brevis muscles?

Accepted Answer

Lateral compartment

Answer

The lateral compartment of the leg contains the peroneus longus and brevis, both innervated by the superficial peroneal nerve.

Question 3

During the windlass mechanism, dorsiflexion of the hallux causes which effect on the medial longitudinal arch?

Accepted Answer

Arch elevation

Answer

Dorsiflexion of the hallux tightens the plantar aponeurosis via the windlass mechanism, raising the medial longitudinal arch and supinating the foot.

Question 4

The posterior tibial artery divides into the medial and lateral plantar arteries at which location?

Accepted Answer

At the level of the calcaneus

Answer

The posterior tibial artery divides into medial and lateral plantar arteries at the level of the calcaneus, just after passing through the tarsal tunnel.

Question 5

Which ligament connects the navicular to the calcaneus and supports the head of the talus?

Accepted Answer

Spring (calcaneonavicular plantar) ligament

Answer

The spring ligament (plantar calcaneonavicular ligament) spans from the sustentaculum tali to the navicular, directly supporting the talar head.

(DPM) Doctor of Podiatric Medicine Practice Test

(DPM) Doctor of Podiatric Medicine Practice Test

DPM Anatomy & Physiology 3