Anatomy
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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| Pectoralis major | Fan shaped muscle of chest, anterior thorax, converges and inserts on humerus, arm adduction
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| External intercostals | Between the ribs, action is to elevate the ribs for breathing, increase thoracic capacity
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| Internal intercostals | Between the ribs, depress ribs for breathing, decrease thoracic capacity
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| Diaphragm | Phrenic muscle, dome shaped muscle that divides thoracic cavity from abdominopelvic, origin ir in ribs, insertion is central tendon of diaphragm. Increase thoracic capacity
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| Three openings in diaphragm | Vena Cava, aortic and esophagus
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| Trapezius | Upper back muscle, elevates, rotates and retracts scapula
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| Lattimus dorsi | lower back muscle that extends, adduct and rotates humerus
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| Rectus Abdominus | Anteromeidal abdominal muscle that has horizontal tendonous intersection, flexes trunk
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| Linea alba | Tendonous structure in the midline of rectus abdominus
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| External obliques | Most superficial of anterolateral abdominal muscles, inserts in the linea alba, its action is to compress the abdomen
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| Internal obliques | Is the intermediate depth of the anterolateral, inserts in the linea alba, compresses abdomen
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| Transverse Abdominus | Deepest of anterolateral abdominal muscles inserts on the linea alba, compresses abdomen
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| Psoas Major | Posterior abdominal wall muscle, flexes thigh
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Created by:
Benjaminschmidt66
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