8Cb Gas exchange

Last updated 3 months ago
12 questions
3

Explain why air moves out of the lungs. Make reference to the ribcage and muscles involved.

1

Why do humans need a gas exchange system?

1

Where does respiration take place in the human body?

1

Which two gases are exchanged in the lungs?

1

What is the main function of the alveoli in the lungs?

1

How does oxygen get from the alveoli into the blood?

1

What happens to the carbon dioxide in the blood when it reaches the lungs?

1

Why do humans breathe more heavily when they exercise?

1

Which part of the blood carries oxygen from the lungs to the rest of the body?

1

What happens to the oxygen once it reaches the body’s cells?

1

Why is the gas exchange system important for survival?

11
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