Question

mechanism of human respiration concept mapping ​

Answer 1

$\huge\mathtt{ANSWER}$

• Mechanism of respiration in man takes place in two phases, namely inspiration and expiration. Inspiration is the process of inhaling air into the lungs. During inspiration, the muscles of diaphragm contract and the diaphragm moves downward. ... During expiration, the muscles of diaphragm relax and diaphragm moves upward.