Posterior Thigh - Ext Hip; Flex knee (Hamstrings)

Question 1

Semitendinosus m. - origin

Answer 1

Ischial tuberosity

Question 2

Semitendinosus m. - insertion

Answer 2

Medial surface of superior part of tibia

Question 3

Semitendinosus m. - nerve

Answer 3

Tibial division of sciatic n. part of tibia (L5, S1, S2)

Question 4

Semitendinosus m. - blood supply

Answer 4

Medial circumflex femoral a.

Question 5

Semitendinosus m., Semimembranosus m. - action

Answer 5

• extend thigh
• flex leg
• IR when knee flexed
• extend trunk when thigh and leg flexed

Question 6

Semimembranosus m. - origin

Answer 6

Ischial tuberosity

Question 7

Semimembranosus m. - insertion

Answer 7

• Medial tibial condyle
• Oblique popliteal l.
• Popliteal fascia

Question 8

Semimembranosus m. - nerve

Answer 8

Tibial division of sciatic n. part of tibia (L5, S1, S2)

Question 9

Semimembranosus m. - blood supply

Answer 9

Medial circumflex femoral a.

Question 10

Biceps femoris m. - origin

Answer 10

Long head: ischial tuberosity

Short head: linea aspera, lateral supracondylar line of femur

Question 11

Biceps femoris m. - insertion

Answer 11

• lateral side of fibula

- tendon split at site by FCL

Question 12

Biceps femoris m. - nerve

Answer 12

Long head: tibial division of sciatic n. (L5, S1, S2)

Short head: Common fibular division of sciatic n. (L5, S1, S2)

Question 13

Biceps femoris m. - blood supply

Answer 13

• Inferior gluteal a.
• Medial circumflex femoral a.
• perforating arteries

Question 14

Biceps femoris m. - action

Answer 14

• Flex leg
• ER when knee flexed
• extend thigh