DPM Anatomy & Physiology 2

Question 1

Which tarsal bone articulates with both the tibia and fibula to form the ankle mortise?

Accepted Answer

Talus

Answer

The talus is the only tarsal bone that articulates with the tibia and fibula superiorly, forming the talocrural (ankle) joint.

Question 2

The plantar aponeurosis originates from which structure?

Accepted Answer

Medial calcaneal tuberosity

Answer

The plantar aponeurosis originates from the medial process of the calcaneal tuberosity and fans out to the metatarsal heads.

Question 3

Which muscle is the primary plantarflexor of the foot and is innervated by the tibial nerve?

Accepted Answer

Gastrocnemius

Answer

The gastrocnemius is the primary plantarflexor, crossing both the knee and ankle, and is innervated by the tibial nerve (S1-S2).

Question 4

The sinus tarsi is a canal between which two bones?

Accepted Answer

Talus and calcaneus

Answer

The sinus tarsi is a cone-shaped canal located between the talus and calcaneus, containing the interosseous talocalcaneal ligament.

Question 5

Which nerve provides sensation to the first web space of the dorsum of the foot?

Accepted Answer

Deep peroneal nerve

Answer

The deep peroneal nerve provides cutaneous sensation exclusively to the first web space on the dorsum of the foot.

(DPM) Doctor of Podiatric Medicine Practice Test