The function of lungs is to facilitate the exchange of oxygen and carbon dioxide between the air and the blood
Breathing, often referred to as respiration in the animal care industry, is the process of ventilating the lungs
Inhalation is breathing in, while exhalation is breathing out
Cellular respiration is the reaction that releases energy from organic molecules in cells
The alveoli and associated capillaries are the site of gas exchange, where oxygen diffuses from the alveoli into the blood and carbon dioxide diffuses from the blood into the alveoli
During inhalation, the diaphragm muscle contracts, the rib (intercostal) muscles contract, the rib cage moves up and out, the chest cavity volume increases, and the air pressure in the lungs decreases, allowing air to move into the lungs
Label the following.
A) contracts
B) relaxes
C) flat
D) dome
E) contract
F) relax
G) up and out
H) down and in
I) increases
J) decreases
K) decreases
L) increases
M) into lungs
N) out of lungs
Larynx hollow organ that allows air to pass through the trachea and into the lungs.
Alveoli are tiny air sacs in the lungs where gas exchange occurs.
Diaphragm a muscle that helps the lungs expand and contract during breathing.
Capillaries blood vessels in the alveoli walls that move oxygen and carbon dioxide.
Trachea is a tube-like structure that carries air from the mouth or nose to the lungs.
Ribs protect the internal organs, including the heart and lungs.
Pleura membrane is a double layered membrane that lines the lungs and the chest cavity.
