Thigh: Medial Compartment

Question 1

Gracilis

Answer 1

Origin… Body and inferior ramus of pubis

Insertion… Superior part of medial surface of tibia

Innervation… Obturator nerve

Blood Supply: Profunda femoris, medial circumflex femoral

Action… Adducts thigh, flexes and medially rotates leg

Question 2

Adductor Brevis

Answer 2

Origin… Body and inferior ramus of pubis

Insertion… Pectineal line and proximal part of linea aspera
of femur

Innervation… Obturator nerve

Bloody supply… Profunda femoris, medial circumflex
femoral, obturator artery

Action… Adducts thigh at hip, weak hip flexor

Question 3

Adductor Longus

Answer 3

Origin… Body of pubis inferior to pubic crest

Insertion… Middle 1/3 of linea

Innervation… Obturator nerve

Blood Supply… Profunda femoris and medial circumflex
femoral arteries

Action… Adducts thigh at hip

Question 4

Adductor Magnus

Answer 4

Origin… Inferior pubic ramus, ramus of ischium
Hamstring: Ischial tuberosity

Insertion… Gluteal tuberosity, linea aspera, medial
supracondylar line
Hamstring: Adductor tubercle of femur

Innervation… Obturator nerve
Hamstring: Sciatic (Tibial)

Blood Supply… Femoral, profunda femoris, obturator
arteries

Action… Adducts and flexes thigh
Hamstring: Extends thigh

Question 5

Obturator Externus

Answer 5

Origin… Margins of obturator foramen, obturator foramen

Insertion… Trochanteric fossa of femur

Innervation… Obturator nerve

Blood Supply… Medial circumflex femoral artery, obturator
artery

Action… Laterally rotates thigh, stabilizes head of femur in
acetabulum

Question 6

Pectineus

Answer 6

Origin… Superior ramus of pubis

Insertion… Pectineal line of femur

Innervation… Femoral nerve

Blood Supply… Medical circumflex femoral, obturator

Action… Addcuts and flexes thigh at hip