Medial thigh muscles: SUPERFICIAL

Question 1

Insertion of pectineus?

Answer 1

Femur (pectineal line and the proximal linea aspera)

Question 2

Innervation of pectineus?

Answer 2

Femoral n, obturator n.

L2, L3

Question 3

Action of pectineus?

Answer 3

Hip joint: adduction, external rotation, and slight flexion

Stabilizes pelvis in coronal and sagittal plane

Question 4

Origin of adductor longus?

Answer 4

Superior pubic ramus and anteiror side of the pubic symphysis

Question 5

Insertion of adductor longus?

Answer 5

Femur (linea aspera, medial lip in middle third of femur)

Question 6

Innervation of adductor longus?

Answer 6

Obturator n.

L2-L4

Question 7

Action of adductor longus/brevis?

Answer 7

Hip joint: adduction and flexion (up to 70 degrees); extension (past 80 degrees of flexion)
Stabilizes pelvis in coronal/sagittal plane

Question 8

Origin of adductor brevis?

Answer 8

Inferior pubic ramus

Question 9

Innervation of adductor brevis and gracilis?

Answer 9

Obturator n.

L2, L3

Question 10

Origin of gracilis?

Answer 10

Inferior pubic ramus below pubic symphysis

Question 11

Insertino of gracilis?

Answer 11

Tibia (medial border of the tuberosity, along w/ the tendons of sartorius and semitendenous)

Question 12

Action of gracilis?

Answer 12

Hip joint: adduction and flexion

Knee joint: flexion and internal rotation

Question 13

Origin of pectineus?

Answer 13

Pecten pubis

Question 14

Insertion for adductor brevis?

Answer 14

Superior 1/3 of linea aspera on femur