Mechanics of Breathing
Mechanics of quiet respiration The Diaphragm is primary respiratory muscle. The Diaphragm contracts, pulling the central tendon down until the abdominal wall prevents the abdominal viscera from moving any further. This increases the vertical diameter. The 12th rib is fixed by quadratus lumborum. Central tendon is fixed so the diaphragm now elevates the lower 6 […]
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