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Respiratory System

QuestionAnswer
respiration breathing; the transport of oxygen from outside the body to cells and tissues AND the transport of carbon dioxide and wastes away from the cells and tissues to the environment
inhale to breathe in
exhale to breathe out
diaphragm the domed shaped muscle that makes us breathe
lung tissue that inflates and deflates with air; the alveoli are located in the lungs where the gases are exchanged
nasal cavity nose; warms, moistens, and filters the air we breathe
pharynx passageway for food, air, and liquid
larynx holds our vocal cords
trachea wind pipe; surrounded by cartilage for protection
bronchus (bronchi) when the trachea splits into 2 air ways, each side leading to a lung
bronchiole the branches off of each bronchus that lead to the alveoli
epiglottis flap of tissue above the larynx that covers the air pipe when you swallow. Prevents food and liquid from entering the lungs
alveolus (alveoli) sacs surrounded by capillaries where the oxygen and carbon dioxide are exchanged in the lungs
What is the main function of the respiratory system? exchange gases between the organism and its environment
What specific structure is the site of the gas exchange? the alveoli
What type of blood vessels surround the alveoli? capillaries
What muscle makes us breath? diaphragm
Do the lungs move on their own? No the diaphragm pulls air into the lungs and pushes the air out
Explain how the respiratory system and circulatory system interact? The respiratory system brings air into and out of our body. The circulatory system transports the CO2 and O2 around our body. They interact when the alveoli and the capillaries exchange these 2 gases
Created by: mvanderb