Basics of Leg Anatomy | Western Sydney University - Edubirdie

University:
Western Sydney University
Course:
MEDI 2003 | Clinical Sciences 2
Academic year:

2024
Views:

79

Pages:

2
Author:

Mariam A. A.

BASICS OF LEG ANATOMY The leg The leg describes the region between the knee and the ankle and includes the transitional areas of the popliteal fossa posterior to the knee and the tarsal tunnel at the ankle Popliteal fossa Boundaries • • • • Superomedial border – semimembranosus. Superolateral border – biceps femoris. Inferomedial border – medial head of the gastrocnemius. Inferolateral border – lateral head of the gastrocnemius and plantaris. Contents • • • • • • Popliteal artery Popliteal vein Tibial vein Common fibular (peroneal) nerve Small saphenous vein (termination) Lymph vessels Which muscles are innervated by the common fibular (peroneal) nerve? Anterior leg muscles (tibialis anterior, extensor hallucis longus, extensor digitorum longus); lateral leg muscles (fibularis longus, fibularis brevis); dorsal foot muscles (extensor digitorum brevis, extensor hallucis brevis) Which muscles are innervated by the tibial nerve? Posterior compartment of the leg, all intrinsic muscles (except extensor digitorum brevis) Clinical Question What is the clinical significance of the popliteal fossa? Joints Tibiofibular joint • • Proximal - Formed by an articulation between the head of the fibula and the lateral condyle of the tibia. - It is a plane type of synovial joint, where the bones to glide over one another to create movement. Distal - Consists of an articulation between the fibula notch of the distal tibia and fibula - It is an example of a fibrous joint, where the surfaces ae by bound by tough fibrous tissue

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