Medial Muscles of the Thigh (Adductors)

Question 1

Adductor Longus

Answer 1

O: pubic tubercle

I: medial lip of linea aspera

A: adduction and flexion of the hip

In: obturator nerve

Question 2

Adductor Brevis

Answer 2

O: body + inferior ramus of the pubis

I: pectineal line + proximal part of linea aspera

A: adduction and flexion of the hip

In: obturator nerve

Question 3

Adductor Magnus

Answer 3

O: inferior ramus of the pubis , ramus of ischium , ischial tuberosity

I: linea aspera (anterior fibers) + adductor tubercle of femur (posterior fibers)

A: adduction + flexion of hip (anterior fibers), extension of hip (posterior fibers)

In: obturator nerve (anterior fibers) , sciatic nerve (posterior fibers)

Question 4

Obturator Externus

Answer 4

O: obturator membrane + bone around obturator foramen on pelvis external surface

I: trochanteric fossa of femur

A: lateral rotation of hip

In: obturator nerve

Question 5

Gracilis

Answer 5

O: inferior ramus of the pubis + ramus of ischium

I: medial surface - proximal end of the tibia just distal to the medial condyle

A: adduction of the thigh, flexion of the leg, and medial rotation of flexed leg

In: obturator nerve