Lecture 19: Lateral Compartment (lower leg)

Question 1

fibularis longus

Answer 1

• P: fibula
• D: wraps around underneath to base of 1st metatarsal and 1st cuneiform
• Action: pull fibula down to stabilize ankle joint, plantar flex @ ankle
• 2 actions at intertarsal joints: Eversion and maintains the transverse arch

Question 2

fibularis brevis

Answer 2

• P: fibula
• D: base of 5th metatarsal
• Action: pull fibula down to stabilize ankle joint, plantar flex @ ankle, eversion of intertarsal joint

Question 3

fibularis longus and brevis are both innervated by…

Answer 3

superficial fibular n. (L5-S2)