Lateral compartment of leg

Question 1

Origin of Fibularis longus?

Answer 1

Fibula (head and proximal two thirds of the lateral surface, arising partly from the intermuscular septa)

Question 2

Insertion of fibularis longus?

Answer 2

Medial cuneiform (plantar side), 1st metatarsal (base)

Question 3

Innervation for fibularis longus and fibularis brevis?

Answer 3

Superficial fibular n.

L5, S1

Question 4

Action of fibularis longus?

Answer 4

Talocrural joint: plantar flexion
Subtalar joint: eversion (pronation)
Supports the transverse arch of foot

Question 5

Origin of fibularis brevis?

Answer 5

Fibula (distal half of lateral surface), intermuscular septa

Question 6

Insertion of fibularis brevis?

Answer 6

5th metatarsal (tuberosity at the base, with an occasional division to the dorsal aponeurosis of the 5th toe)

Question 7

Action of fibularis brevis?

Answer 7

Talocrural joint: plantar flexion

Subtalar joint: eversion (pronation)