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7 Cards in this Set
- Front
- Back
- 3rd side (hint)
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intercostal interosseus muscles
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origin: inner superior surface of rib below
insertion: inner inferior surface of rib above |
pulls ribs down & fixes ribs
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transversus thoracis m.
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origin: posterior surface of sternum,xiphoid process, and r5-r7
Insertion: lower borders and inner surfaces of r2-r6 |
pull downward on r2-r6
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external oblique m.
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origin: posterior surfaces of R5-R12
Insertion: anterior 1/2 of iliac crest and abdominal aponeurosis |
pulls lower ribs downward and compresses the anterior abdomen
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transversus abdominus m.
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origin: inner surfaces of R6-R12, diaphragm, and transversus thoracis
insertion: deepest layer of the abdominal aponeurosis and the pubis |
compresses the anterior and lateral walls of the abdomen
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rectus abdominus m.
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Origin: crest of pubis
Insertion: cartilages of R5-R7 and xiphoid process |
pulls down on the sternum and lower ribs and compresses the anterior abdominal wall
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lastissimus dorsi m.
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origin: spines of lower thoracic vertebrae, lumbar vertebrae & R10-R12
Insertion: inferior border of R8-R12 |
compress back wall
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serratus posterior inferior m.
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Origin: spinous process of T1-T12
Insertion: inferior border of R8-R12 |
Depresses Ribs 8-12
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