Unit II Lec 20 Flashcards
Two bones form the skeleton of the leg
tibia and the fibula
the large distal medial bone of the leg
tibia
smaller distal end of the tibia forms the
medial malleolus
Proximally, tibia articulates with the _________
condyles of the femur and the head of the fibula
tendinous insertions below the medial tibial condyle is called
pes anserinus (or goose’s foot)
pes anserinus (or goose’s foot) formed by the tendons of what 3 mx
sartorius, the gracilis, and the semitendinosus muscles
slender lateral bone of leg, does not transmit weight
fibula
The ______ nerve crosses posterolateral to the neck of the fibula
common peroneal
The distal end of the fibula forms the ________
lateral malleolus
Both the medial and lateral malleoli articulate with what foot bone
talus
Three articulations between the tibia the fibula
superior tibiofibular joint; the inferior tibiofibular joint, and the middle tibiofibular joint (interosseous membrane)
The deep fascia of the leg is called
crural fascia
crural fascia is a continuation of the _______
deep fascia of the thigh
3 compartments of the crural fascia are
anterior, lateral and posterior
The posterior compartment of the crural fascia is split into what two layers
deep and superficial
Superior interosseous membrane possesses an opening for the passage of the ________ to the anterior compartment
anterior tibial vessels
Inferior interosseous membrane opening, allows the _______ to enter the anterior compartment
perforating branch of the peroneal artery
Anterior Cutaneous Innervation of the Leg, 3 nerves
lateral sural cutaneous nerve, superficial peroneal nerve, saphenous nerve
Lateral Cutaneous Innervation of the Leg
superficial peroneal nerve
Poterior Cutaneous Innervation of the Leg, 5 nerves
posterior cutaneous nerve of the thigh, lateral sural cutaneous nerve, sural nerve, saphenous nerve, medial sural nerve
common peroneal nerve branches into what 2 nerves
lateral sural cutaneous nerve, superficial peroneal nerve
branch of the femoral nerve for anterior cutaneous innervation of leg
saphenous nerve
The superficial peroneal nerve divides into what 2 nerves just above the ankle
medial and intermediate dorsal cutaneous nerves of the foot
The sural nerve continues along the side of the foot as the __________ nerve of the foot
lateral dorsal cutaneous nerve
branch of the tibial nerve that does posterior cutaneous innervation of leg
medial sural nerve
Anterior Fascial Compartment has within it 4 muscles
- tibialis anterior
- extensor hallucis longus
- extensor digitorum longus
- peroneus tertius
Lateral Fascial Compartment of the leg contains only 2 muscles
The peroneus longus, The peroneus brevis