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Muscle Attachments Pelvis and Thigh

On This Page: Bones and Bony Landmarks | Muscles

Bones and Bony Landmarks

Anterior Inferior Iliac Spine
Anterior Superior Iliac Spine
Coccyx
Gluteal Tuberosity
Greater Trochanter
Iliac Crest
Iliac Fossa
Inferior Ramus Of The Pubis
Ischial Tuberosity
Posterior Superior Iliac Spine
Pubic Crest And Tubercles
Ramus Of The Ischium
Sacroiliac (SI) Joint
Sacrum
Superior Ramus Of The Pubis

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Adductor Magnus

Origin	Inferior Ramus Of The Pubis, Ramus Of Ischium, Ischial Tuberosity
Insertion	Linea Aspera And Adductor Tubercle
Actions	Adduct Hip, Medially Rotate Hip, Assist Hip Flexion Posterior Fibers Also Extend The Hip

Adductor Longus

Origin	Pubic Tubercle
Insertion	Medial Lip Of Linea Aspera
Actions	Adduct Hip, Medially Rotate Hip, Assist Hip Flexion

Adductor Brevis

Origin	Inferior Ramus Of Pubix
Insertion	Pectineal Line And Medial Lip Of Linea Aspera
Actions	Adduct Hip, Medially Rotate Hip, Assist Hip Flexion

Pectineus

Origin	Superior Ramus Of Pubis
Insertion	Pectineal Line Of Femur
Actions	Adduct Hip, Medially Rotate Hip, Assist Hip Flexion

Gracilis

Origin	Inferior Ramus Of Pubis And Ramus Of Ischium
Insertion	Proximal, Medial Shaft Of Tibia At Pes Anserius Tendon
Actions	Adduct Hip, Medially Rotate Hip, Assist Hip Flexion Also Flexes And Medially Rotates The Knee

Gluteus Maximus

Origin	Coccyx, Posterior Sacrum, Posterior Iliac Crest, Sacrotuberus And Sacroiliac Ligaments
Insertion	Gluteal Tuberosity (Upper Fibers), Iliotibial Tract (Lower Fibers)
Actions	Extends, Laterally Rotates, And Abducts The Hip; Lower Fibers, Adduct the Hip

Gluteus Medius

Origin	External Surface Of The Ilium Between The Iliac Crest And Posterior And Anterior Gluteal Lines
Insertion	Greater Trochanter
Actions	Abducts, Flexes, Extends And Laterally And Medially, Rotates Hip

Gluteus Minimus

Origin	External Surface Of The Ilium Between Anterior And Inferior Gluteal Lines
Insertion	Anterior Border Of Greater Trochanter
Actions	Abducts, Flexes, And Medially Rotates Hip

Biceps Femoris

Origin	Long Head: Ischial Tuberosity Short Head: Lateral Lip Of Linea Aspera
Insertion	Head Of The Fibula
Actions	Flex Knee, Extend Hip, Tilt Pelvis Posteriorly, Also Laterally Rotate Hip And Flexed Knee

Semitendinosus

Origin	Ischial Tuberosity
Insertion	Proximal, Medial Shaft Of The Tibia
Actions	Flex Knee, Extend Hip, Tilt Pelvis Posteriorly, Also Medially Rotate Hip And Flexed Knee

Semimembranosus

Origin	Ischial Tuberosity
Insertion	Posterior Aspect Of medial Condyle Of Tibia
Actions	Flex Knee, Extend Hip, Tilt Pelvis Posteriorly, Also Medially Rotate Hip And Flexed Knee

Psoas Major

Origin	Bodies And Transverse Processes Of Lumbar Vertebrae
Insertion	Lesser Trochanter Of Femur
Actions	Flexes, Adducts And Laterally Rotates Hip

Iliacus

Origin	Iliac Fossa
Insertion	Lesser Trochanter Of Femur
Actions	Flexes, Adducts And Laterally Rotates Hip

Piriformis

Origin	Anterior Surface Of Sacrum
Insertion	Greater Trochanter
Actions	Laterally Rotate Hip, Abduct Thigh When Hip Is Flexed

Quadratus Femoris

Origin	Lateral Border Of Ischial Tuberosity
Insertion	Posterior Surface Of Femur Between Greater And Lesser Trochanter
Actions	Laterally Rotates Hip

Obdurator Internus

Origin	Obdurator Membrane And Pelvic Surface
Insertion	Medial Surface Of Greater Trochanter
Actions	Laterally Rotates Hip

Obdurator Externus

Origin	Superior And Inferior Rami Of Pubis
Insertion	Trochanteric Fossa Of Femur
Actions	Laterally Rotates Hip

Gemellus Inferior

Origin	Ischial Tuberosity
Insertion	Upper Border Of Greater Trochanter
Actions	Laterally Rotates Hip

Gemellus Superior

Origin	Spine Of The Ischium
Insertion	Upper Border Of Greater Trochanter
Actions	Laterally Rotates Hip

Rectus Femoris

Origin	Anterior Inferior Iliac Spine (AIIS)
Insertion	Tibial Tuberosity
Actions	Extend Knee, Flex Hip

Vastus Medialis

Origin	Medial Lip Of Linea Aspera
Insertion	Tibial Tuberosity
Actions	Extend Knee

Vastus Lateralis

Origin	Lateral Lip Of Linea Aspera, Gluteal Tuberosity
Insertion	Tibial Tuberosity
Actions	Extend Knee

Vastus Intermedius

Origin	Anterior And Lateral Shaft Of Femur
Insertion	Tibial Tuberosity
Actions	Extend Knee

Sartorius

Origin	Anterior Superior Iliac Spine (ASIS)
Insertion	Proximal, Medial Shaft Of Tibia
Actions	Flex, Abduct And Laterally Rotate Hip, Flex Knee, Medially Rotate Flexed Knee

Tensor Fascia Latae

Origin	Iliac Crest, Posterior To ASIS
Insertion	Iliotibial Tract
Actions	Flex, Abduct And Medially Rotate Hip

This is a superficial sheet of fascia along the lateral thigh, extending from the gluteal fascia, down to the tibial tubercle at the knee. It is wide and dense in the upper thigh but narrows to a funnel shape above the knee.