Group 7 Muscles

Question 1

Gracilis origin

Answer 1

Lateral surface of inferior ramus of pubis and ischium

Question 2

Gracilis insertion

Answer 2

Medial surface of tibia, beside sartorius and semitendinosus where shaft and head join

Question 3

Gracilis action

Answer 3

Knee flexion and internal rotation, hip adduction

Question 4

Gracilis nerve

Answer 4

Obturator (L2 3 4)

Question 5

Adductor Brevis origin

Answer 5

Lateral surface of inferior ramus of pubis

Question 6

Adductor Brevis insertion

Answer 6

Upper 1/3 of linea aspera

Question 7

Adductor Brevis action

Answer 7

Hip adduction, slight medial rotation, extension, flexion

Question 8

Adductor Brevis nerve

Answer 8

Obturator (L2 3 4)

Question 9

Adductor Longus origin

Answer 9

Body of pubis

Question 10

Adductor Longus insertion

Answer 10

Middle half of medial lip of linea aspera

Question 11

Adductor Longus action

Answer 11

Hip adduction, slight internal rotation, extension, flexion

Question 12

Adductor Longus nerve

Answer 12

Obturator (L2 3 4)

Question 13

Adductor Magnus origin

Answer 13

External surface of ischial tuberosity and inferior rami of ischium and pubis – horizontal fibers from the ramus of the pubis are sometimes called the adductor minimus

Question 14

Adductor Magnus insertion

Answer 14

Entire length of linea aspera; medial supracondylar ridge of femur, and adductor tubercle

Question 15

Adductor Magnus action

Answer 15

Hip adduction, external rotation, extension (lower portion), flexion (upper portion)

Question 16

Adductor Magnus nerve

Answer 16

Obturator and Sciatic (L2 3 4 5 S1)