the respiratory system

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  • Created by: Jaderose
  • Created on: 19-05-14 18:06
whats inspriration
breathing in
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what expiration
breathing out
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what happens during inspiation
intercostal and diaphragm muscles contract ribcage upwards and outwards diaphragm flattens increased volume of the thorax lung pressure decreases causes air to flow in active process
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what happens during expiration
intercostal and diaphragm muscles relax ribcage moves downwards and inwards diaphragm becomes curved again thorax volume decreases air pressure increases air forced out passive
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what are alveoli walls made from
alveoli epithelium and elastin
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what factors do the alveoli have to make exchange quick
thin exchange surface 1 cell thick, large surface area lots of them and a constant high concentration gradient
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what is meant by tidal volume
volume of air in each breath
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what is meant by ventilation rate
the number breaths per minute
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whats a spirometer
a machine that measure the volume of air breathed in and out
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Other cards in this set

Card 2

Front

what expiration

Back

breathing out

Card 3

Front

what happens during inspiation

Back

Preview of the front of card 3

Card 4

Front

what happens during expiration

Back

Preview of the front of card 4

Card 5

Front

what are alveoli walls made from

Back

Preview of the front of card 5
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