Mechanism of Breathing

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The name for the upper body
The thorax
1 of 10
What are the muscles inbetween the ribs called?
The intercostal muscles
2 of 10
Which direction does gas move in relation to pressure
From an area of high pressure to low pressure
3 of 10
Because inhaling uses energy, what is the name for the process
An active process
4 of 10
What happens to the intercostal muscles during inhalation and how do they move the ribs?
They contract and pull the ribs upwards and outwards
5 of 10
What happens to the intercostal muscles during exhalation and how do they move the ribs?
They relax and move the ribs downwards and inwards
6 of 10
What happens to the diaphragm during inhalation and how does this effect the volume of the thorax?
The diaphragm contracts and flattens increasing the volume of the thorax
7 of 10
What happens to the diaphragm during exhalilation and how does this effect the volume of the thorax?
The diaphragm relaxes and forms a dome and the volume of the thorax decreases
8 of 10
How does the pressure change during inhalation?
The increase in volume decreases the pressure so air enters the lungs
9 of 10
How does the pressure change during exhalation?
The decrease in volume increases the pressure so air is forced out of the lungs
10 of 10

Other cards in this set

Card 2

Front

What are the muscles inbetween the ribs called?

Back

The intercostal muscles

Card 3

Front

Which direction does gas move in relation to pressure

Back

Preview of the front of card 3

Card 4

Front

Because inhaling uses energy, what is the name for the process

Back

Preview of the front of card 4

Card 5

Front

What happens to the intercostal muscles during inhalation and how do they move the ribs?

Back

Preview of the front of card 5
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