Medial Thigh- muscles

Question 1

Gracilis- origin

Answer 1

A line on the external surfaces of the body of the pubis, the inferior pubic rams, and the ramus of the ischium

Question 2

Gracilis- insertion

Answer 2

Medial surface of proximal shaft of tibia

Question 3

Gracilis- innervation

Answer 3

Obturator nerve (L2, L3)

Question 4

Gracilis- function

Answer 4

Adducts thigh at hip joint and flexes leg at knee joint

Question 5

Pectineus- origin

Answer 5

Pectineal line (pecten pubis) and adjacent bone of pelvis

Question 6

Pectineus- insertion

Answer 6

Oblique line extending from base of lesser trochanter to line aspera on posterior surface of proximal femur

Question 7

Pectineus- innervation

Answer 7

Femoral nerve (L2, L3)

Question 8

Pectineus- function

Answer 8

Adducts and flexes thigh at hip joint

Question 9

Adductor longus- origin

Answer 9

External surface of body of pubis (triangular depression inferior to pubic crest and lateral to pubic symphysis)

Question 10

Adductor longus- insertion

Answer 10

Linea aspera on middle one-third of shaft of femur

Question 11

Adductor longus- innervation

Answer 11

Obturator nerve (anterior division) (L2, L3, L4)

Question 12

Adductor longus- function

Answer 12

Adducts and medially rotates thigh at hip joint

Question 13

Adductor brevis- origin

Answer 13

External surface of body of pubis and inferior pubic ramus

Question 14

Adductor brevis- insertion

Answer 14

Posterior surface of proximal femur and upper one-third of line aspera

Question 15

Adductor brevis- innervation

Answer 15

Obturator nerve (L2, L3)

Question 16

Adductor brevis- function

Answer 16

Adducts and medially rotates thigh at hip joint

Question 17

Adductor magnus- origin

Answer 17

Adductor part- ischiopubic ramus

Hamstring part- ischial tuberosity

Question 18

Adductor magnus- insertion

Answer 18

Adductor part- posterior surface of proximal femur, linea aspera, medial supracondylar line
Hamstring part- adductor tubercle and supracondylar line

Question 19

Adductor magnus- innervation

Answer 19

Adductor part- obturator nerve (L2, L3, L4)

Hamstring part- sciatic nerve (tibial division) (L2, L3, L4)

Question 20

Adductor magnus- function

Answer 20

Adducts and medially rotates thigh at hip joint

Question 21

Obturator externus- origin

Answer 21

External surface of obturator membrane and adjacent bone

Question 22

Obturator externus- insertion

Answer 22

Trochanteric fossa

Question 23

Obtrurator externus- innervation

Answer 23

Obturator nerve (posterior division) (L3, L4)

Question 24

Obturator externus- function

Answer 24

Laterally rotates thigh at hip joint