Medial thigh muscles

Question 1

Pectineus

Answer 1

• Origin: superior pubic ramus (pectineal line of pubis) + pubic tubercle
• Insertion: pectineal line of femur + linea aspera
  Movements
• hip flexion + adduction
• possible medial rot

Question 2

Adductor longus

Answer 2

• Origin: just below medial end of the obturator crest on anterior aspect of the body of the pubis
• Insertion: middle two-quarters of the linea aspera
  Movements
• adductor of thigh
• can flex the extended thigh + extend the flexed thigh

Question 3

Adductor brevis

Answer 3

• Origin: lateral part of the front of the body + inferior ramus of the pubis
• Insertion: upper half of linea aspera anterior to adductor magnus
  Movements
• adductor of thigh

Question 4

Adductor magnus (adductor + hamstring parts)

Answer 4

• Origin: femoral surface of the ischiopubic ramus + lateral part of inferior surface of ischial tuberosity
• Insertion: linea aspera + greater trochanter + medial supracondylar ridge + adductor tubercle
  Movements
• adductor of hip joint
• posterior portion = aids in hip extension
• rotation?

Question 5

Gracilis

Answer 5

• Origin: front of the body of the pubis + its inferior ramus just encroaching onto the ramus of the ischium
• Insertion: short vertical line on the upper part of the medial surface of the shaft of the tibia
  Movements
• adduction of thigh
• flexion of knee
• knee semiflexed, aids medial rot