Medial compartment of the thigh

Muscle
- gracillis
- adductors longus
- adductor brevis
- adductor magnus
- obturator externus
Nerve
- obturator nerve
Vessels
- produnda femoris & obturator artery
Action of all adductors
- Less important in prime movement of adduction than in synergic activities associated with posture & gait

most superficial muscle
Origin
- Edge of inferior pubic ramus & adjoining ischial ramus
Insertion
- Upper part of medial surface of shaft of tibia just behind sartorius
Nerve Supply
- Anterior division of obturator nerve

most superficial of 3 adductors
upper border lies between the femoral & profunda femoris vessels
Origin
- Circular area on body of pubis, in angle of pubic crest & symphysis
- Tendon is sometimes ossified (rider’s bone)
Insertion
- Via apneurotic flat tendon into middle third of linea aspera of femur
Nerve Supply
- Anterior division of obturator nerve

Anterior division of obturator nerve passes downwards on its anterior surface & posterior division passes behind it
Origin
- Body & inferior ramus of pubis, deep to pectineus & adductor longus
Insertion
- Upper part of linea aspera immediately behind insertion of pectineus & adductor longus
Nerve Supply
- Anterior division of obturator nerve

Composite muscle formed by fusion of adductor & hamstring muscle masses, each with their own nerve supply
Medial circumflex femoral artery passes between upper border of adductor magnus & lower border of quadratus femoris to reach the cruciate anastomosis
Near the top of the medial supracondylar line, there is a gap in the muscle attachment through which the femoral vessels pass, changing to the popliteal vessels
Along the linea aspera attachment there are 4 small openings, the lowest for the end of the profunda femoris vessels & the others for their perforating branches
Origin & Insertion
- Hamstring
- Ischial tuberosity attaching to adductor tubercle of femur & medial supracondylar line
Adductor
- Ischial tuberosity & ischiopubic ramus inserting progressively higher along the medial supracondylar line, the linea aspera, up to gluteal tuberosity
Nerve Supply
- Hamstring
  - Tibial part of sciatic nerve
- Adductor
  - Posterior division of obturator (L2,3)

Obturator membrane & anterior bony margin of obturator foramen
muscle passes laterally & posteriorly beneath neck of femur where it narrows into a tendon that spirals in contact with the back of the femoral neck

With other short muscles around hip, stabilizes & supports the proximal part of limb
Lateral rotator of femur