Chapter 7- Gaseous exchange and transport Flashcards

1
Q

Define gaseous exchange?

A

Exchange of oxygen, carbon dioxide and nutrients between an organism/cells and the environment.

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2
Q

Define countercurrent exchange system

A

When the blood flow is opposite to water flow, maintaining a steep concentration gradient.

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3
Q

Define tidal volume

A

The volume of air moved in and out of the lungs at each resting breath.

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4
Q

Define vital capacity

A

Maximum volume of air that can be breathed in and out

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5
Q

Define residual volume

A

Volume of air that cannot be removed from the lungs/ the volume of air left in the lungs after the deepest possible exhalation.

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6
Q

Define inspiratory reserve volume

A

Maximum volume of air that can be breathed in over and above a normal inhalation.

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7
Q

Define expiratory reserve volume

A

Extra amount of air you can force out of your lungs over and above the normal tidal volume of air you breathe out.

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8
Q

Define ventilation rate

A

Volume of air that moves in and out in one minute.

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