Drow a diagram of human respiratory system and label on it (1) diaphragm (2) larynx.
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( diaphragm):-
a dome-shaped muscular partition separating the thorax from the abdomen in mammals. It plays a major role in breathing, as its contraction increases the volume of the thorax and so inflates the lungs.
larynx:-
the hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals; the voice box.
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