Anatomy Exam Joints of the Lower Limb 5

Question 1

Which type of joint is the proximal tibiofibular joint classified as?

Accepted Answer

Plane (gliding) synovial joint

Answer

The proximal tibiofibular joint is a plane synovial joint that allows slight gliding movements, particularly during ankle dorsiflexion.

Question 2

A patient with a positive anterior drawer test at the ankle most likely has damage to the:

Accepted Answer

Anterior talofibular ligament

Answer

The anterior drawer test stresses the anterior talofibular ligament (ATFL); excessive anterior translation of the talus indicates ATFL rupture.

Question 3

The spring ligament (plantar calcaneonavicular ligament) primarily supports which structure?

Accepted Answer

Head of the talus

Answer

The spring ligament supports the head of the talus from below, helping maintain the medial longitudinal arch; its insufficiency contributes to flatfoot deformity.

Question 4

In which position is the ankle joint most stable (close-packed position)?

Accepted Answer

Full dorsiflexion

Answer

Full dorsiflexion is the ankle's close-packed position because the wider anterior part of the talus is wedged between the malleoli, maximizing joint congruency.

Question 5

The pes anserine ('goose's foot') refers to the combined insertion of which muscles at the medial tibia?

Accepted Answer

Sartorius, gracilis, and semitendinosus

Answer

The pes anserine is the conjoint insertion of sartorius, gracilis, and semitendinosus tendons on the anteromedial tibia, named for its resemblance to a goose's foot.

Anatomy Exam Practice Test

Anatomy Exam Practice Test

Anatomy Exam Joints of the Lower Limb 5