state the total of the following in human respiratory system a) diaphragm b) alveoli c) nasal haor
Answers
Explanation:
Nose hair is a natural part of the human body that serves as a defense system. Nasal hair keeps harmful debris out of the body system and maintains moisture in the air we breathe. Blood vessels in the nose and face are extra dense.
The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out. Oxygen breathed in from the air passes through the alveoli and into the blood and travels to the tissues throughout the body.
A large dome-shaped muscle under the lungs called the diaphragm squeezes downward when you breathe in, making a vacuum that causes a rush of fresh air into your lungs. The opposite happens when you breathe out -- your diaphragm relaxes upward, pushing on your lungs, letting them deflate.