muscles of thorax Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
muscles | origin | insertion | function |
Intercostal (internal) | superior margin of each rib | inferior border of next rib above | expiration; depresses ribs (25% of breathing) |
Rectus Abdominus | pubic crest and symphysis | xiphoid process and inferior ribs | flexes vertebral column; depresses thorax; compresses abdomen (sit ups / crunches) |
External Abdominal Oblique | fifth to twelfth ribs | Illiac crest, inguinal ligament, and rectus sheath | flexes and rotates vertebral column; compresses abdomen, depresses thorax (twisting flexion) |
Internal Abdominal Oblique | Illiac crest, inguinal ligament and lumbar fascia | tenth to twelfth ribs and rectus sheath | flexes and rotates vertebral column; compresses abdomen, depresses thorax (twisting flexion) |
Transversus Abdominus | seventh to twelfth costal cartilages ,lumbar fascia, Illiac crest, and inguinal ligament | Xiphoid process, linea alba, and pubic tubercle | compresses abdomen ( use this when you go #2) |
Quadratus Lumborum | Illiac crest and lower lumbar vertebrae | twelfth rib and upper lumbar vertebrae | rotates vertebral column and depresses 12th rib (twisting flexion) |
passive | * diaphragm * intercostals | ------------------------------------------------------------------------------- | ------------------------------------------------------------------------------- |
active | *diaphragm *intercostals *QL(ex breathing out) *scalenes (pulling up inhale) *sternocleidomastoid(inhale) *abs (exhale) | -------------------------------------------------------------------------------- | ------------------------------------------------------------------------------- |
Diaphragm | Interior of the ribs, sternum, and lumbar vertebrae | central tendon of the diaphragm | inspiration, depress floor of the thorax (75% of breathing) |
Intercostal (external) | inferior margin of each rib | superior border of next rib below | Inspiration; elevates ribs (25% of breathing) |
Created by:
Sierra987
Popular Anatomy sets