Popliteal Fossa

Question 1

Boundaries of popliteal fossa

Answer 1

Upper medial- semitendinosus and semimembranosus
Upper lateral- biceps femoris
Lower medial- medial head of gastrocnemius
Lower lateral- lateral head of gastrocnemius and plantaris

Question 2

Contents of popliteal fossa

Answer 2

Popliteal artery and vein
Tibial nerve
Common peroneal nerve
Lymph nodes

Question 3

Roof of popliteal fossa

Answer 3

Skin and fascia
Fascia contains- small saphenous vein and the terminal branch of the posterior cutaneous nerve of the thigh

Question 4

Floor of popliteal fossa

Answer 4

Popliteal surface of femur
Capsule of the knee joint
Popliteus muscle

Question 5

Origin, course,and termination of popliteal artery

Answer 5

Origin- continuation of femoral artery at the adductor hiatus
Course- deeper structure on popliteal surface, capsule of knee joint and popliteus
Termination- at distal border of popliteus by dividing into anterior tibial and posterior tibial arteries

Question 6

Branches of popliteal artery

Answer 6

5 genicular arteries; superior medial and lateral, inferior middle and lateral, and middle genicular arteries

Question 7

Origin, landmark branches and termination of tibial nerve

Answer 7

Origin-terminal branch of sciatic nerve
Landmark- most superficial structure
Termination- continues in th back of leg as tibial nerve
Branches- sural nerve(only cutaneous nerve), muscular branches(gastrocnemius, plantaris, soles, popliteus) 3 articular branches

Question 8

Origin, landmark, termination and branches of common peroneal nerve

Answer 8

Origin- terminal branch of sciatic nerve
Landmark-runs along medial border of biceps femoris in popliteal fossa
Termination-divides to superficial and deep peroneal nerves at neck of fibula
Branches- sural communicating nerve and lateral cutaneous nerve of the calf, 3 articular branches