Superficial Medial Thigh Muscles

Question 1

Pectineus insertion

Answer 1

Femur (pectineal line )

Question 2

Pectineus innervation

Answer 2

Femoral n

Obturator n L2,L3

Question 3

Pectineus action

Answer 3

Hip joint: adduction, external rotation, and slight flexion

Pelvic stabilization

Question 4

Adductor longus origin

Answer 4

Superior pubic ramus and anterior part of pubic symphysis

Question 5

Adductor longus insertion

Answer 5

Femur ( middle 1/3 of linea aspera) (medial lip)

Question 6

Adductor longus and brevis action

Answer 6

Hip joint : adduction and flexion (up to 70 degrees)
Extension (past 80 degrees of flexion)
Stabilize pelvis

Question 7

Adductor longus innervation

Answer 7

Obturator n. L2-L4

Question 8

Adductor brevis origin

Answer 8

Inferior pubic ramus

Question 9

Gracilis origin

Answer 9

Inferior pubic ramus below pubic symphysis

Question 10

Gracilis insertion

Answer 10

Tibia (medial border of the tibial tuberosity)

Question 11

Adductor brevis and gracilis innervation

Answer 11

Obturator n L2,L3

Question 12

Gracilis action

Answer 12

Hip joint: adduction and flexion

Knee joint: flexion and internal rotation

Question 13

Biceps femoris long head origin

Answer 13

Ischial tuberosity, sacrotuberous ligament

Question 14

Biceps femoris insertion

Answer 14

Head of fibula

Question 15

Biceps femoris short head origin

Answer 15

Lateral lip of the linea aspera

Question 16

Biceps femoris long head innervation

Answer 16

Tibial n L5-S2

Question 17

Biceps femoris short head innervation

Answer 17

Common fibular n L5-S2

Question 18

Biceps femoris long head action

Answer 18

Hip joint: extend hip, stabilize pelvis

Knee joint: flexion and external rotation

Question 19

Biceps femoris short head action

Answer 19

Flexion and ext rotation

Question 20

Semimembranosus origin

Answer 20

Ischial tuberosity

Question 21

Semimembranosus insertion

Answer 21

Medial tibial condyle, oblique popliteal lig, popliteus fascia

Question 22

Semimembranosus and semitendinosus innervation

Answer 22

Tibial n L5-S2

Question 23

Semimembranosus and semitendinosus action

Answer 23

Hip joint: extends hip, stabilize pelvis

Knee joint: flexion and internal rotation

Question 24

Semitendinosus origin

Answer 24

Ischial tuberosity and sacrotuberous lig

Question 25

Semitendinosus insertion

Answer 25

Medial to the tibial tuberosity in the pes ansernus

Question 26

Pectineus origin

Answer 26

Pectin pubis

Question 27

Adductor brevis insertion

Answer 27

Femur (pectineal line and proximal 1/3 of linea aspera) (medial lip)