Posterior Thigh

Question 1

Cutaneous innervation for the posterior aspect of the thigh and over the popliteal fossa

Answer 1

Posterior femoral cutaneous S1-S3

Question 2

Anterior and medial aspects supplied by which cutaneous nerve

Answer 2

Anterior femoral cutaneous nerve L2 - 3

Question 3

Lateral cutaneous innervation for the posterior thigh is

Answer 3

Lateral femoral cutaneous nerve L2 -L3

Question 4

Over the head of the fibula cutaneous innervation posterior

Answer 4

Common peroneal, or lateral sural cutaneous nerve L4-S2

Question 5

Biceps femoris

Answer 5

Long head
O- ischial tuberosity
I- head of the fibula, also spray onto posterior aspect of tibia as well
N- tibial portion of sciatic (more medial)
A- extend thigh and flex the leg

Short head
O- linea aspera
N- common peroneal portion of sciatic (more lateral)
A- cannot extend the thigh, but can flex knee

Question 6

Semitendinosis

Answer 6

O- ischial tuberosity
I- medial surface of tibia inferior to the condyle (pes anserine)
N- tibial portion of sciatic
A- extend thigh, flex leg, medially rotates leg

Question 7

Semimembranosus

Answer 7

O- ischial tuberosity
I- medial condyle of the tibia
N- tibial portion of the sciatic
A- extend thigh, flex leg, medially rotate leg