thorax
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Intercostal (internal) | superior margin of each rib | inferior border of next rib above | expiration; depresses ribs
(25% of breathing)
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Rectus Abdominus | pubic crest and symphysis | xiphoid process and inferior ribs | flexes vertebral column; depresses thorax; compresses abdomen
(sit ups / crunches)
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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)
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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)
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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)
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Quadratus Lumborum | Illiac crest and lower lumbar vertebrae | twelfth rib and upper lumbar vertebrae | rotates vertebral column and depresses 12th rib
(twisting flexion)
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passive | * diaphragm * intercostals | ------------------------------------------------------------------------------- | -------------------------------------------------------------------------------
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active | *diaphragm *intercostals *QL(ex breathing out) *scalenes (pulling up inhale) *sternocleidomastoid(inhale) *abs (exhale) | -------------------------------------------------------------------------------- | -------------------------------------------------------------------------------
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Diaphragm | Interior of the ribs, sternum, and lumbar vertebrae | central tendon of the diaphragm | inspiration, depress floor of the thorax
(75% of breathing)
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Intercostal (external) | inferior margin of each rib | superior border of next rib below | Inspiration; elevates ribs
(25% of breathing)
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Created by:
Sierra987
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