Term
External Abdominal Oblique
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Action:
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Definition
External Abdominal Oblique
O: External surface of ribs 5-12
I: Linea alba, pubic tubercle, anterior iliac crest
Action: Flex trunk, support abdominal viscera
Nerve: Thoracoabdominal nn. and subcostal n. |
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Term
Internal Abdominal Oblique
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Action:
Nerve: |
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Definition
Internal Abdominal Oblique
O: thoracolumbar fascia, anterior iliac crest, inguinal ligament
I: inferior border of lower ribs (10-12), linea alba
Action: flex trunk, support abdominal viscera
Nerve: thoracoadominal nn. and L1-L2 |
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Term
Transversus Abdominis
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Definition
Transversus Abdominis
O: inferior surface of costal cartilages (7-12), iliac crest, inguinal ligament
I: aponeurosis of IAO, pubic crest
Action: flex trunk, support abdominal viscera
Nerve: thoracoabdominal nn. and L1-L2 |
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Term
Rectus Abdominis
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Action:
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Definition
Rectus Abdominis
O: pubic crest and symphysis
I: xiphoid process and costal cartilages (5-7)
Action: flex trunk, support and compress abdominal viscera
Nerve: thoracoabdominal nn. |
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Term
Pyramidalis
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Action:
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Definition
Pyramidalis
O: pubic crest
I: linea alba
Action: tenses linea alba
Nerve: thoracoabdominal nn. |
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Term
Quadratus Lumborum
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Definition
Quadratus Lumborum
O: 12th rib, lumbar TPs
I: internal iliac crest
Action: flex trunk, fix 12th rib during inhalation
Nerve: T12, L1-L4 |
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