Chapter 7 - The Breathing System Flashcards
1
Q
When we breath in our diaphragm moves …
A
Down
2
Q
When we breath out our diaphragm moves …
A
Up
3
Q
Is the level of carbon dioxide greater in inhaled or exhaled air?
A
Exhaled
4
Q
What is gases exchange and where does it take place?
A
Gases exchange is when oxygen from the air is swapped with carbon dioxide from the body. It occurs in tiny air sacks in the lungs called alveoli.
5
Q
Why is smoking bad for us?
A
It prevents efficient gases exchange.
6
Q
Why does our breathing rate increase when we exercise?
A
We need more oxygen for respiration and so get rid of more carbon dioxide.
7
Q
What are the functions of the breathing system?
A
To take in oxygen (needed for respiration) and exhale carbon dioxide and water vapour (waste products of respiration).
