Mechanism of breathing respiration ytshorts

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Mechanism of breathing //respiration /ytshorts • Bresthing consists of inspiration expiration. In inspiration diaphragm muscles contract, ribs strernum move outward upward making low pressure in thoracic cavity. The air from outsides moves into lungs. Inexpiration just the reverse happens air moves out of the lungs. • • #shorts • #neetspirants • #neetbiology • #respiration • #aiims • #shortfeed

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