Muscles of Lateral compartment of leg

Question 1

Fibularis longus (Origin, Insertion-2, Innervation, Action-3)

Answer 1

Origin: Head and superior 2/3 of lateral surface of fibula

Insertion:

• Base of 1st metatarsal
• Medial cuneiform

Innervation: Superficial fibular nerve

Action:

• Everts foot
• Weakly plantarflex ankle
• Supports transverse arch

Question 2

Fibularis brevis (Origin, Insertion, Innervation)

Answer 2

Origin: Inferior 2/3 of lateral surface of fibula

Insertion: Dorsal surface of tuberosity of base of 5th metatarsal

Innervation: Superficial fibular nerve