C12 - The Respiratory System - Caleb Guesno | Library

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Lungs contract and expand and are controlled by the

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Gas exchange occurs at the site of the

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Word Bank: 
alveoli
bronchi
right
lungs
bronchioles


The trachea splits into a pair of _______.  There is a left and _______ one. The bronchi branch into smaller _______. They are inside of your _______ where oxygen has to eventually go. Bronchioles divide into smaller _______.

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After coming form the larynx, oxygen then heads into your _______. The windpipe is also known as the _______. The trachea has _______  that move back and forth as someone talks or _______. The trachea is guiding fresh oxygen to the _______. 

Word bank:
rings
trachea
sings
lungs
windpipe

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When you breathe, oxygen goes into your _______ (oral cavity) and nose (nasal cavity). Then oxygen heads down the _______. Next oxygen will then head to the voice box also known as the _______ 

Word Bank:
larynx
pharynx
mouth

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Alveoli are _______ air _______ in the lungs that are _______ by tiny blood _______.

Word Bank:
vessels
microscopic
sacs
surrounded 

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Energy comes from __________, which is a simple sugar we get from food. Glucose is taken into the bloodstream and into cells to produce ATP by the mitochondria.

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The walls of _______ have membranes too. Oxygen and carbon dioxide can _______  through it. 

Word Bank
Alveoli
diffuse

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Diffusion can occur through a membrane if the particles are ______ to get through it.

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Diffusion is when gas particles, like oxygen or carbon dioxide, move from

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Word Bank:
vessels
dioxide
alveoli
oxygen

When we breathe, _______ diffuses out of the alveoli into the blood _______. Carbon _______ moves (diffuses) from the blood to the _______. 

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