Question

define breathing movements ?

Answer 1

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Explanation:

Respiratory movement The muscular movement that enables the passage of air to and from the lungs or other respiratory organs of an animal. The mechanism of the movement varies with the species. In insects abdominal muscles relax and contract rhythmically to encourage the flow of air through the tracheae. In amphibians air is drawn into the lungs by a pumping action of the muscles in the floor of the mouth. Breathing in mammals involves the muscle of the diaphragm and the intercostal musclesbetween the ribs. Contraction of these muscles lowers the diaphragm and raises the ribs, so that the lungs expand and air is drawn in (see inspiration). Relaxation has the opposite effect and forces air out during expiration.

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Answer 2

◼️ Define breathing movements

↪️ breathing is the process of moving air into and out of the longs to facilitate gas exchange with the internal environment , mostly to bring in oxygen and flush out carbon dioxide ... the body circulatory system transport these gases to and from the cells , where cellular respiration takes place.

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