Posterior Femoral Muscles

Question 1

What 3 muscles make up the hamstring?

Answer 1

biceps femoris, semimembranosus, semitendiosus

Question 2

biceps femoris attachments

Answer 2

from the ischial tuberosity & sacrotuberous lig. (long head); lateral lip of linea aspera & lateral supracondylar line (short head) to the lateral side of fibular head

Question 3

biceps femoris actions:

Answer 3

flexes & laterally rotates the knee (both heads) & extends hip (long head only)

Question 4

biceps femoris inn.

Answer 4

• tibial division of sciatic (long head) & fibular division of the sciatic nerve (short head)

Question 5

Semimembranosus attachments:

Answer 5

from ischial tuberosity to posterior aspect of the medial tibial condyle

Question 6

Semimembranosus actions:

Answer 6

extends hip, and flexes & medially rotates knee

Question 7

semimembranosus innervation:

Answer 7

tibial division of the sciatic nerve (L4-5-S1-3)

Question 8

semitendinosus attachments

Answer 8

from the ischial tuberosity to the proximal, medial tibia

Question 9

semitendinosus actions:

Answer 9

extends hip, and flexes & medially rotates knee

Question 10

semitendinosus innervation:

Answer 10

tibial division of the sciatic nerve (L4-5-S1-3)