Popliteal Fossa & Posterior Leg Flashcards
location of popliteal fossa?
posterior to knee joint
relation of popliteal artery to popliteal vein?
artery lies posterior to vein
which 3 muscles form the superior boundaries of the popliteal fossa?
semimembranosus, semitendinosus, biceps femoris
which muscles form the inferior boundaries of the popliteal fossa?
medial head of gastrocnemius, lateral head of gastrocnemius and plantaris
name 6 contents of the popliteal fossa?
fat, popliteal a. and v., tibial nerve, common fibular nerve, popliteal lymph nodes and vessels
where does the popliteal emerge?
from the adductor hiatus as a continuation of the femoral artery
how are posterior leg muscles divided?
superficial and deep
how many heads does the gastrocnemius m. have?
2
gastrocnemius - innervation?
tibial nerve
plantaris - action?
plantarflexes ankle and flexes knee
what is the relationship between the achilles tendon and gastrocnemius?
The achilles tendon is the strong terminal attachment of gastrocnemius, passing down to insert onto the posterior aspect of the calcaneus bone
name 4 muscles of the deep, posterior compartment of the leg?
popliteus, flexor hallucis longus, tibialis posterior, flexor digitorum longus
how do the deep muscles (except popliteus) enter the foot and what covers them?
they pass the calcaneus, posterior to medial malleolus, covered in flexor retinaculum
action of deep posterior muscles?
flex toes and/or ankle
which nerve and vessel accompany the 3 tendons to the foot?
tibial nerve and posterior tibial artery
