torsoabdominalmuscles

torsoabdominalmuscles - – Lie just deep to external...

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Click to edit Master subtitle style 5/8/11 Torso Muscles/Upper Arm All Muscles of Inspiration Pectoralis Major/Minor – elevates sternum Serratus Anterior – elevates ribs 1-9 Subclavius – elevates rib 1 Trapezius – elongates neck/controls head Rhomboideus Major/Minor – stabilizes shoulder girdle Levator scapulae – neck support/elevates scapula
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5/8/11
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5/8/11 Abdominal Muscles Basic Function Firm wall holding in abdominal contents Muscles criss-cross at several different angles Compress diaphragm upward (lung decreases/pressure increases) = primary muscles of expiration
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5/8/11 Abdominal Muscles cont. Internal Oblique
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Unformatted text preview: – Lie just deep to external obliques – Form middle layer of abdominal musculature – Compress abdominal contents – Assists in forced exhalation and in expulsion of contents of abdominal viscera • External Oblique – Largest/strongest/ most superficial – Compress abdominal contents 5/8/11 Abdominal Muscles cont. • Transverse Abdominus – Deepest of abdominal muscles – Follows a horizontal course – Constricts, compresses abdomen – Instrumental in forced exhalation • Rectus Abdominus – Parallel to midline – Lateral to linea alba – Tenses abdominal wall and assists in...
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torsoabdominalmuscles - – Lie just deep to external...

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