Breathing ~ The Human Lungs {INSPIRATION - breathing in}

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  • Created by: emilyowl
  • Created on: 14-04-16 09:46
What is inspiration?
Inspiration is the active process of breathing in.
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What do the external intercostal muscles and the internal intercostal muscles do during inspiration?
The external intercostal muscles contract and the internal intercostal muscles relax.
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What movement happens to the ribs during inspiration?
The ribs are pulled upwards and outwards.
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What happens to the volume of the thorax during inspiration?
The volume of the thorax is increased.
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What happens to the diaphragm during inspiration?
The diaphragm contracts and flattens.
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What happens as a result of the volume of the thorax during inspiration?
The increased volume of the thorax results in reduced pressure in the lungs.
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Compare the pressure in the atmosphere and in the lungs during inspiration.
Atmospheric air has greater pressure than pulmonary pressure in the lungs.
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What happens as a result of the different pressures in inspiration?
Air is drawn in from the atmosphere through the trachea into the lungs from high to low pressure down the pressure gradient.
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Other cards in this set

Card 2

Front

What do the external intercostal muscles and the internal intercostal muscles do during inspiration?

Back

The external intercostal muscles contract and the internal intercostal muscles relax.

Card 3

Front

What movement happens to the ribs during inspiration?

Back

Preview of the front of card 3

Card 4

Front

What happens to the volume of the thorax during inspiration?

Back

Preview of the front of card 4

Card 5

Front

What happens to the diaphragm during inspiration?

Back

Preview of the front of card 5
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