Dissection of posterior aspect of left leg

Interosseous membrane; area of origin of tibialis posterior muscle

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Image #196-5

Dissection of posterior aspect of left leg

Interosseous membrane; area of origin of tibialis posterior muscle

The tibialis posterior has been removed by dividing its fibres close to their origins (2) to demonstrate the interosseous membrane in relation to the posterior aspects of the tibia and fibula.

1. Popliteal artery (at point of bifurcation into tibial vessels)
2. Tibialis posterior muscle (area of origin)
3. Fibula
4. Interosseous membrane of leg
5. Peroneal artery
6. Popliteus muscle (area of insertion)
7. Location of nutrient artery entering tibia
8. Muscular and periosteal branch of tibialis posterior
9. Tibia
10. Communicating branch of peroneal artery