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Respiratory Sysytem

How the lungs work...

TermDefinition
nose the organ that you can inhale and exhale out of...also you can smell with it
mouth Air from your nose can enter this organ, you can also breathe and taste through this organ
epiglottis this flap of tissue closes when you swallow, so that food does not enter your airway
pharynx this is another word for "throat" and air passes through it and over your voice box
larynx this is another word for "voice box" which is located in the throat
trachea air passes into this strong tube, and it also divides into two branches
lungs this organ has two parts, and is the color pink when it is healthy...it puffs up with air when we inhale and deflates when we exhale
bronchi these are the two branches of the trachea, each leads into a separate lung and divides into smaller branches
diaphragm this is a flat sheet of muscle which pulls air in and pushes air out of the lungs
alveoli these are small sacs at the end of the bronchi branches, taking oxygen TO the blood stream and pulling carbon dioxide OUT of the blood as well...
capillaries tiny blood vessels that cover the alveoli
red blood cells take sugar and oxygen to the mitochondria (so it can make energy) and take carbon dioxide and water AWAY from the mitochondria after energy is made
mitochondria an organelle in the animal cell which uses oxygen and sugar to make energy
Movement of the diaphragm It moves UP when we EXHALE and it pulls DOWN when we INHALE
Created by: Sugarcoat