Origin/Insertion of Muscles - Iliopsoas (including Psoas Major and Ilicus)

The Iliopsoas includes the Psoas Major and Ilicus muscles.

 

Psoas Major

Origin: Bodies and bases of transverse processes of L1-L5

Insertion: Lesser trochanter of the femur

Action: Flexes and laterally rotates thigh at hip; flexes vertebral column

Transverse Process L1 -L5
 



Lesser Trochanter

 

Ilicus

Origin: Iliac fossa of OS Coxa

Insertion: Lesser trochanter of femur

Action: Flexes and laterally rotates thigh at hip

 

Iliac Fossa

 

Origin/Insertion of Muscles - Core Muscles (Internal and External Oblique)

Internal Oblique
Origin: Anterior iliac crest; lateral half inguinal ligament; Thoracolumber fascia
Insertion: Costal cartilages of ribs 8-12; abdominal aponeurosis to linea alba
Action: Flexes vertebral column (draw throax downwards); rotates vertebral column (torso); laterally flexes vertebral column (torso); compresses abdomen

Iliac Crest

Inguinal Ligament

Thoracolumbar Fascia

Costal Cartilages

External Oblique
Origin: External surfaces of ribs 5-12
Insertion: Anterior iliac crest and abdominal aponeurosis to linea alba
Action: Flexes vertebral column; rotates vertebral column; laterally flexes vertebral column; compresses abdomen

Origin and Insertion points



Origin/Insertion of Muscles - Core Muscles (Transverse Abdominis and Rectus Abdominis)

Your Core Muscles are used to stabilise the pelvis during dynamic movement and stabilising and movement of the spine and pelvis. By stabilising the spine you are decreasing the risk of back injury.
Major Muscle include:

• Transverse Abdominis
• Rectus Abdominis
• Internal and External Obliques

Muscles of the Core

 

Transverse Abdominis
Origin: Anterior iliac crest; lateral half of inguinal ligament, throacolumber fascia and cartilages of ribs 6-1
Insertion: Abdominal aponeurosis to linea alba, xyphoid process and pubic symphysis
Action: Compression of Abdomen



Transverse Abdominis

Iliac Crest and Pubic Symphysis

Xiphoid Process

Rectus Abdominis
Origin: Pubic crest and symphysis pubis
Insertion: Costal cartilages of ribs 5-7; xyphoid process of sternum
Action: Flexes vertebral column (torso); compresses abdomen

Pubic Crest and Symphysis Pubis

Costal cartilages

Moves for stronger Gltues

We've done our origin and insertion for our glute muscles. A refresher:

• Gluteus Maximus
• Gluteus Minimus
• Gluteus Medius

There is an article for "6 moves for stronger glutes

http://www.acefitness.org/blog/4977/6-moves-for-stronger-glutes/"

Joce

Origin/Insertion of Muscles - Abductor Muscles - Piriformis

Piriformis
Origin: Anterior surface of the lateral sacrum
Insertion: Greater trochanter of femur along upper medial surface
Action: Laterally rotates thigh at hip; abducts thigh if hip flexed

Piriformis Muscle

Lateral surface (Piriformis muscle)

Origin/Insertion of Muscles - Abductor Muscles (Gluteus Minimus, Tensor Fascia Latae)

Gluteus Minimus
Origin: Outer (external) surface of the Ilium, between the anterior and inferior gluteal lines
Insertion: Anterior surface of the greater trochanter of femur
Action: Abducts thigh at hip; anterior fibres medially rotate thigh



Gluteal Lines

Greater Trochanter

Tensor Fascia Latae
Origin: Anterior Iliac Crest
Insertion: Lateral condyle of the tibia via the Iliotibial Tract (band)
Action: Abducts and flexes thigh at hip

Iliac Crest

Tensor Fascia

Lateral Condyle