Week 13: OIA Axial Flashcards
Origin of Serratus Posterior Superior
The spinous process of C7-T3
Insertion of Serratus Posterior Superior
Posterior Surface of Rib 2-5
Action of Serratus Posterior Superior
Elevate ribs during inhalation
Origin of Serratus Posterior Inferior
Spinous Process of T12-L3
Insertion of Serratus Posterior Inferior
Post surface of rib 9-12
Action of Serratus Posterior Inferior
Depress the ribs during exhalation
Origin of Transverse abdominis
Lateral inguinal ligament, iliac crest, thoracolumbar fascia, internal lower 6 ribs
Makes line starting at back with thoracolumbar fascia to iliac crest to LIL then up to the lower 6 ribs
Insertion of Transverse abdominis
Abdominal aponeurosis
Action of Transverse abdominis
compress abdomen
Origin of Rectus Abdominis
Pubis crest, pubis symphysis
Insertion of Rectus abdominis
The cartilage of 5-7 rib and xiphoid process
Action of Rectus abdominis
Flex vertebra, tilt pelvis posteriorly
Origin of internal abdominal obliques
Lateral inguinal ligament, iliac crest, thoracolumbar aponeurosis
Insertion of internal abdominal obliques
Internal lower 3 ribs, abdominal aponeurosis
Action of internal abdominal obliques
Unilat: lat flex vertebrae same, rotate vertebra same
Bilat: flex vertebra, compress abdomen
Origin of external abdominal obliques
External surface of rib 5-12
Insertion of external abdominal obliques
Anterior iliac crest, abdominal aponeurosis
Action of External Abdominal Obliques
Unilat: lat flex vertebra same, rotate vertebra opposite
Bilat: flex vertebra, compress abdomen
Origin of Quadratus Lumborum
Posterior iliac crest