Content
Introduction 0:00
Division of the Hip Muscles 0:25
Anterior Group: Iliopsoas Muscle 0:50
Psoas Minor 1:40
Posterior Group 2:05
Deep Posterior Muscles 2:17
Piriformis 2:33
Obturator Internus 2:57
Gemellus Superior/Inferior 3:18
Quadratus Femoris 3:37
Obturator Externus Muscle 4:06
Superficial Posterior Muscles 4:48
Gluteus Minimus 5:13
Gluteus Medius 5:38
Gluteus Maximus 6:00
Tensor Fasciae Latae 7:00


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Muscles of the Hip Joint
Anterior Group [3]
Posterior Group [10] Deep + Superficial Layers

Anterior Group:
Iliacus Muscle
musculus iliacus
O: Iliac Fossa
Psoas Major
musculus psoas major
O: Vertebral Bodies of T12L5
Iliopsoas Muscle
musculus iliopsoas
I: Lesser Trocheanter of Femur
trocheanter minor
F:
Flexion + Adduction of Femur
External Rotation of Femur
Flexion of Trunk

Psoas Minor
musculus psoas minor
O: Vertebral Bodies of T12L1
I: Iliopubic Eminence
eminentia iliopubica
F: Flexion of Trunk

Posterior Group:
Deep Muscles:
‘’Pelvicotrocheanteric Muscles’’
Insert around greater trocheanter
Maintain stability of the hip joint and posture
Piriformis
musculus piriformis
○ O: Anterior Surface of Sacrum (S2S4)
I: Greater Trocheanter of Femur
trocheanter major
F:
External Rotation of Thigh
Abduction of Thigh
Obturator Internus
musculus obturatorius internus
○ O: Inner surface of Obturator Membrane
○ I: Greater Trocheanter of Femur
trocheanter major
F:
External Rotation of Thigh
Abduction of Thigh
Gemellus Superior
musculus gemellus superior
O: Ischial Spine
Spina ischiadicum
Gemellus Inferior
musculus gemellus inferior
O: Ischial Tuberosity
Tuber ischiadicum
I: Greater Trocheanter of Femur
trocheanter major
○ F: External Rotation of Thigh
Quadratus Femoris
musculus quadratus femoris
O: Ischial Tuberosity
Tuber ischiadicum
I: Intertrochanteric Crest
Crista intertrocheanterica
F:
External Rotation of thigh
Adduction of thigh
Obturator Externus
musculus obturatorius externus
O: External surface of
Obturator Membrane
I: Trocheanteric Fossa
Fossa trocheanterica
F:
External Rotation of thigh
Accessory flexion
Superficial Muscles [4]
○ Gluteal Muscles + Tensor Fascia Latae
○ Fasciliate standing up from a sitting position
○ Climbing Stairs
○ Prevent the hip from deviating to one side
Gluteus Minimus
musculus gluteus minimus
O: Gluteal Surface of the Ileum
between the anterior and
inferior glueal lines
I: Greater Trocheanter of Femur
trocheanter major
F:
Abduction of Femur
Anterior Fibers: Internal Rotation
Posterior Fibers: External Rotation
Gluteus Medius
musculus gluteus minimus
O: Gluteal surface of Ileum
between the anterior and
posterior gluteal lines
I: Greater Trocheanter of Femur
trocheanter major
F:
Abduction of Femur
Anterior Fibers: Internal Rotation
Posterior Fibers: External Rotation
Gluteus Maximus
musculus gluteus maximus
O:
Gluteal Surface of Ileum
(Behind posterior gluteal line)
Posterior surface of Sacrum and Coccyx
Sacrotuberal Ligament
Thoracolumbar Fasica
I:
Gluteal Tuberosity of the Femur
Iliotibial Tract
F:
Abduction + Extension of Femur
External Rotation
Tensor Fasciae Latae
musculus tensor fasciae latae
○ O: Anterior Superior Ilaic Spine
I: Continues into the Iliotibial Tract
Tubercle of Iliotibial Tract
F:
Tenses Iliotibial Tract to ‘’lock’’ the
knee joint
Flexion of Femur