Medial Thigh Muscles

Question 1

The entire medial compartment is innervated by?

Answer 1

Obturator nerve (L2/L3/L4)

Question 2

The entire medial compartment’s blood supply comes from the “…….” artery?

Answer 2

Obturator

Question 3

Adductor Magnus Origin(s)

Answer 3

Adductor part: Inferior Rami of the Pubis and the Rami of the Ischium.
Hamstring Part: Ischial tuberosity

Question 4

Adductor Magnus Attachment(s)

Answer 4

Adductor part: Linea Aspera of the Femur

Hamstring Part: Adductor Tubercle on the Distal and Medial side of the Femur

Question 5

Adductor Magnus Action(s)

Answer 5

Both parts act to Adduct the Thigh
Adductor part also Flexes the Thigh
The Hamstring part Extends the Thigh

Question 6

Adductor Magnus Innervation(s)

Answer 6

Adductor part: Obturator nerve (L2/L3/L4)

Hamstring part: Tibial nerve (L4/L5/S1/S2/S3)

Question 7

Name and purpose for the hole distally found in the Adductor Magnus

Answer 7

Adductor Hiatus.
Allows passage of neurovasculture from the anterior to the posterior compartment of the thigh, and then into the Popliteal Fossa. The end of the Adductor Canal.

Question 8

Adductor Longus Origin

Answer 8

Pubis

Question 9

Adductor Longus Attachment

Answer 9

Broadly to Linea Aspera of the Femur

Question 10

Adductor Longus Action

Answer 10

Adduction and Medial Rotation of the Thigh

Question 11

Adductor Brevis Origin

Answer 11

Body of Pubis and Inferior Pubic Rami

Question 12

Adductor Brevis Attachment

Answer 12

Linea Aspera on the Posterior Surface of the Femur, Proximal to Adductor Longus

Question 13

Adductor Brevis Action

Answer 13

Adduction of the Thigh

Question 14

Obturator Externus Origin

Answer 14

Membrane of the Obturator Foramen and adjacent Bone

Question 15

Obturator Externus Attachment

Answer 15

Posterior Aspect of the Greater Trochanter

Question 16

Obturator Externus Action

Answer 16

Laterally Rotates the Thigh

Question 17

Gracilis Origin

Answer 17

Inferior Rami of the Pubis and the Body of the Pubis

Question 18

Gracilis Attachment

Answer 18

Medial surface of the Tibia in between the tendons of Sartorius (anteriorly) and Semitendinosus (posteriorly)

Question 19

Gracilis Action

Answer 19

Adducts the Thigh at the Hip

Flexion of the leg at the Knee