Posterior thigh and popiteal fossa

Question 1

Innervation of the posterior compartment?

Answer 1

sciatic nerve branches

Question 2

Vascular supply of the posterior compartment?

Answer 2

profunda femoris

Question 3

function of the semitendinosus?

Answer 3

hip extension and knee flexion

Question 4

function of the semimbranosus?

Answer 4

hip extension and knee flexion

Question 5

function of long head of biceps femoris

Answer 5

hip extension and knee flexion

Question 6

function of short head of biceps femoris?

Answer 6

knee flexion

Question 7

innervation of the short head of biceps femoris?

Answer 7

fibular nerve

Question 8

what creates the polpiteal fossa?

Answer 8

semimembranosus, biceps femoris, medial and lateral head of gastrocnemius

Question 9

what happens if there is an absess or tumor in this space?

Answer 9

generates significant pain bc the area limits expansion of space

Question 10

clinical significance of the popliteal artery?

Answer 10

anatomoses so that there is no loss in circulation during knee flexion, the anastomse goes in a circle around the knee in order to protect against falling on knees

Question 11

what does the popliteal fossa protect?

Answer 11

tibial n. common fibular n. popilteal a.

Question 12

Note the popliteal artery, as well as anteirior and post tibial, fibular branches

Answer 12

study

Question 13

note the sciatic nerve and its split into tibial and common fibular nerve

Answer 13

study

Question 14

what does the popiteal vein get blood from?

Answer 14

lesser saphenous vein

Question 15

where does lymph get drained after popliteal fossa?

Answer 15

deep inguinal lymph