Muscular System Axial (Abdomen)
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16 Terms
What is this muscle?
External Oblique
What is the origin of External Oblique?
Lower eight ribs
What is the insertion of External Oblique?
Anterior part of iliac crest, abdominal aponeurosis to linea alba
What is the action of External Oblique?
Compresses abdominal contents, laterally flexes and rotates vertebral column
What is this muscle?
Internal Oblique
What is the origin of Internal Oblique?
Lateral half of inguinal ligament, iliac crest, thoracolumbar fascia
What is the insertion of Internal Oblique?
Cartilage of bottom three or four ribs, abdominal aponeurosis to linea alba
What is the action of Internal Oblique?
Compresses abdominal contents, laterally flexes and rotates vertebral column
What is this muscle?
Rectus Abdominis
What is the origin of Rectus Abdominis?
Crest of pubis, pubic symphysis
What is the insertion of Rectus Abdominis?
Cartilage of fifth to seventh ribs, xiphoid process
What is the action of Rectus Abdominis?
Flexes vertebral column, compresses abdomen
What is this muscle?
Transverse Abdominis
What is the origin of Transverse Abdominis?
Lateral part of inguinal ligament, iliac crest, thoracolumbar fascia, cartilage of lower six ribs
What is the insertion of Transverse Abdominis?
Abdominal aponeuroses to linea alba
What is the action of Transverse Abdominis?
Compresses abdomen