Hip Muscles

Question 1

Iliacus

Answer 1

Origin - Iliac Fossa
Insertion - Lesser Trochanter
Action - Flex Hip
Innervation - Femoral Nerve
Blood Supply - Iliolumbar Artery

Question 2

Psoas Major

Answer 2

Origin - All Lumbar Vertebrae
Insertion - Lesser Trochanter
Action - Flex Hip
Innervation - L2-4
Blood Supply - Iliolumbar Artery

Question 3

Rectus Femoris

Answer 3

Origin - Anterior Inferior Iliac Spine (AIIS)
Insertion - Patella thru the patella tendon to the Tibial Tuberosity
Action - Hip Flex, Knee Extension
Innervation - Femoral Nerve
Blood Supply - Superficial Femoral Artery

Question 4

Sartorius

Answer 4

Origin - Anterior Superior Iliac Spine (ASIS)
Insertion - Pes Anserine
Action - Flex Hip, Abduction, Knee Flexion
Innervation - Femoral Nerve
Blood Supply - 5-11 bv

Question 5

Gluteus Maximus

Answer 5

Origin - Lateral Surface of Ilium behind Posterior Gluteal Line, Posterior Sacrum
Insertion - Iliotibial Band, Gluteal Tuberosity of Femur
Action - Extend Hip, Lateral Rotate Hip, Abduction
Innervation - Inferior Gluteal Nerve
Blood Supply - Inferior and Superior Gluteal Arteries

Question 6

Gluteus Medius

Answer 6

Origin - Lateral surface of ilium between anterior and posterior lines
Insertion - Great Trochanter
Action - Abduct hip, medial rotation
Innervation - Superior gluteal nerve
Blood Supply - Superior Gluteal Artery

Question 7

Gluteus Minimus

Answer 7

Origin - Lateral Surface of Ilium between Anterior and Inferior Gluteal Line
Insertion - Great Trochanter
Action - Abduction, Medial Rotation
Innervation - Superior Gluteal Nerve
Blood Supply - Superior Gluteal Artery

Question 8

Adductor Magnus

Answer 8

Origin - Inferior Ramus of Pubis
Insertion - Linea Aspera and Adductor Tubercle
Action - Adduct Hip, Extend Hip
Innervation - Obturator and Sciatic Nerve
Blood Supply - Deep Femoral Artery

Question 9

Tensor Fascia Lata

Answer 9

Origin - Iliac Crest, Posterior to ASIS
Insertion - Iliotibial Band
Action - Abduct Hip, Medial Rotate Hip
Innervation - Superior Gluteal Nerve
Blood Supply - Inferior Superior Gluteal Arteries

Question 10

Pectineus

Answer 10

Origin - Superior Ramus of Pubis
Insertion - Femur Distal to Lesser Trochanter
Action - Flex and Adduct Hip
Innervation - Femoral Nerve
Blood Supply - Anterior Portion of Obturator Artery

Question 11

Adductor Brevis

Answer 11

Origin - Body and Inferior Ramus of Pubis
Insertion - Pectineal Line
Action - Adduct Hip, Flex Hip
Innervation- Obturator Nerve
Blood Supply - Obturator Artery

Question 12

Adductor Longus

Answer 12

Origin - Pubic Tubercle
Insertion - Medial Lip of Linea Aspera
Action - Adduct Hip
Innervation - Obturator Nerve
Blood Supply - Obturator Artery

Question 13

Gracilis

Answer 13

Origin - Inferior Ramus of Pubis, Ramus of Ischium
Insertion - Pes Anserine
Action - Adduct Hip, Medial rotation of hip IF KNEE IS FLEXED, Flex Knee
Innervation - Obturator Nerve
Blood Supply - Femoral Artery

Question 14

Piriformis

Answer 14

Origin - Anterior Surface of Sacrum
Insertion - Greater Trochanter
Action - External and Lateral Rotation of Hip
Innervation - Sacral Nerves 1-2
Blood Supply - Inferior Branch of Lateral Sacral Artery

Question 15

Superior Gemellus

Answer 15

Origin - Obturator Membrane
Insertion - Medial Surface of Greater Trochanter
Action - Lateral Rotation of Hip

Question 16

Inferior Gemellus

Answer 16

Origin - Ischial Tuberosity
Insertion - Inferior Border Obturator Internus Tendon
Action - Lateral Rotation of Hip

Question 17

Quadratus Femoris

Answer 17

Origin - Ischial Tuberosity
Insertion - Posterior Surface of Femur
Action - Adduction of Hip
Innervation - Nerve to Quadratus Femoris
Blood Supply - Inferior Gluteal Artery

Question 18

Obturator Externus

Answer 18

Origin - Obturator Membrane
Insertion -Trochanteric Fossa
Action - Lateral Rotation of Hip
Innervation - Obturator Nerve
Blood Supply - Obturator Artery