mention the functions of nasal cavity, diaphragm and alveoli.
Answers
Functions of nasal cavity, diaphragm and alveoli:-
Function of nasal cavity:
•As we inhale, mucous traps the microorganisms that comes with air in the nasal passage. In this way, it prevents the microorganisms from entering the body.
•Also, the nasal hair traps the dust particles.
It helps in warming and providing moisture to the air as well.
Function of diaphragm:
•The diaphragm is an thin muscular sheet that forms the floor of the chest cavity.
•The up and down movement of the diaphragm causes a change in the size of the chest cavity that is necessary for breathing.
Function of alveoli:
•Exchange of gases take place in alveoli.
•The walls of alveoli are covered by extensive network of blood vessels or capillaries in which oxygen from alveoli dissolves and are carried by the blood to the heart for pumping.
•In the same way carbon dioxide from the body cells are carried by the blood capillaries to the alveoli from where it goes out of the body.
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