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6 Cards in this Set
- Front
- Back
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Sternalis [Rectus Sternalis] Muscle
(Ventral) |
Found on the sternum, only 8% - 25% of people have. it assists with chest / rib movement.
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External Inercostal
(Lateral External) |
Attaches between the ribs. Breath in - helps lift the rib cage, also supports vertebrae during respiration. Most superficial of inercostal muscles. Muscle fibers go in the direction of the spine to outwards to where cartilage begins in the ribs.
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Internal Inercoastal
(Lateral Middle) |
Attaches between the ribs. Breath in - helps lift the rib cage, also supports vertebrae during respiration. Middle muscle of inercostal muscles. Muscle fibers go in the direction of the front exterior of the body to the spine.
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Innermost Inercostal
(Lateral Internal) |
Attaches between the ribs. Breath in - helps lift the rib cage, also supports vertebrae during respiration. Deepest muscle of inercostal muscles. Muscle fibers go in the direction of the neck to pelvis, only about half the rib cage out.
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Diaphragm
(Lateral Internal) |
Covers lower wall of rib. Fibers join together at central tendon (in the middle around spine in bottom of diaphragm, extends further upwards). When muscles contract it moves from a dome shape to flat causing the air pressure to change and we breathe in.
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Longus Colli Muscle
(Subvertical) |
Long muscle of the neck. Flexes the neck and rotates to the opposite side.
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