1.
The primary center of ossification of the
talus usually appears at what age?
a.
1st month intrauterine
b.
6th month intrauterine*
c.
1st month after birth
d.
8th month after birth
Answer B.
The talus is the second bone
of the tarsus to begin ossification, second only to
the calcaneus. The talus only occasionally possesses
a secondary center of ossification in the lateral
tubercle of the posterior process. The talus is the
second largest bone of the tarsus and is the only
bone of the tarsus to articulate with the tibia and
fibula at the ankle joint. Draves, Anatomy of the
Lower Extremity, page 112.
2.
True or False:
The trochlea of the body of the talus is wider posteriorly than
anteriorly.
Answer False.
The trochlea of the body of
the talus is approximately 25% wider anteriorly than
posteriorly. In dorsiflexion, the wider trochlear
area of the talus fits relatively well into the
wider anterior area of the tibial plafond between
the medial and lateral malleoli. Draves, Anatomy of
the Lower Extremity, page 147.
3. The
bifurcate ligament is also known as:
a.
Chopart’s ligament *
b. Plantar Calcaneonavicular
ligament
c. Dorsal Talonavicular
ligament
d. Plantar Calcaneocuboid
ligament
Answer A. The bifurcate
ligament consists of two arms, the calcaneonavicular
part and the calcaneocuboid part. The stem of the
ligament is its posterior calcaneal attachment. The
medial arm helps to stabilize the talonavicular
joint, while the lateral arm helps to stabilize the
calcaneocuboid joint. Draves, Anatomy of the Lower
Extremity, page 147.
4.
Which of the following is the longest
cutaneous branch of the femoral nerve?
a.
Plantaris
b.
Peroneus brevis *
c. Flexor
Digitorum longus
d.
Peronues longus
Answer B. The Peroneus
brevis muscle originates anterior and deep to the
peroneus longus muscle. Distally, the tendon of the
peroneus brevis lies anterior to the tendon of the
peroneus longus at the lateral malleolus. It then
inserts onto the lateral surface of the tubercle of
the base of the fifth metatarsal. Draves, Anatomy of
the Lower Extremity, page 258
5.
Which of the following is the
longest cutaneous branch of the femoral nerve?
a. Medial calcaneal nerve
b. Sural nerve
c. Medial plantar nerve
d. Saphenous nerve *
Answer D. The
saphenous nerve is the longest cutaneous branch of
the femoral nerve and travels with the saphenous
vein as it passes onto the medial side of the dorsum
of the foot. It generally divides into two sensory
branches proximal to the medial malleolus with the
distal branch traveling to the level of the 1st MTPJ.
Draves, Anatomy of the Lower Extremity, page 303.
