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11.31: Respiration

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

TermDefinition
alveoli Tiny sacs in the lungs where gas exchange takes place.
diaphragm Sheet of muscle that spreads across the bottom of the rib cage.
exhalation Pushing air out of the body through the nose or mouth.
inhalation Taking air into the body through the nose or mouth.
respiration Process of getting oxygen into the body and releasing carbon dioxide.

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Difficulty Level:
At Grade

Concept Nodes:

Grades:
7 , 8
Date Created:
Nov 29, 2012
Last Modified:
Dec 01, 2016
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