Muscles Of The Lateral Leg

Question 1

Origin and insertion of the fibularis longus

Answer 1

-originates from the superior and lateral surface of the fibula and the lateral tibial condyle
-fibres converge into a tendon-descends into the foot, posterior to the lateral malleolus
- tendon crosses under the foot- attaches to the bone on the medial side (medial cuneiform and base of metatarsals)
-innervation: superficial fibular

Question 2

Origin and insertion of the fibularis brevis

Answer 2

-originates from the inferolateral surface of the fibular shaft. Muscle forms a tendon- descends with the fibularis longus into the foot
-travels posteriorly to the lateral malleolus, passing over the calcaneus and the cuboidal bone
-tendon attaches to a tubercle on the 5th metatarsal
Innervation: superficial fibular (peroneal nerve)