Biology, asked by harsh271964, 1 year ago

explan the process of Breathing in human beings

Answers

Answered by RC17
2
" When we breathe in , or inhale , our diaphragm contract's (tightens) and moves downword . This increases the space in chest cavity , into which your lungs expand . The intercoastal muscles between your ribs also help enlarge the chest cavity . They contract to pull our rib cage both upward and outward when we inhale . "

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