Quadratus Femoris - Attachments, Actions & Innervation
Rectus Abdominis Muscle
The rectus abdominis muscle is a long flat abdominal muscle that forms the “6-pack”.
Attachments of Rectus Abdominis Muscle: Origin & Insertion
Origin: (proximal attachments)
a. Pubic crest and symphysis pubis of the hip bone.
Insertion: (distal attachments)
a. Costal cartilages of ribs 5-7; xiphoid process of sternum.
Learn the muscles of the body fast and efficiently with these muscle anatomy reference charts.
Actions of the abdomen:
a. Flexes vertebral column (torso).b. Compresses abdomen.
Innervation of Rectus Abdominis Muscle:
- 7-12 intercostal nerves.