structure of blood vessels and distribution Flashcards

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1
Q

Vital capacity

A

The greatest amount of air that can be passed into and out of the lungs by most forceful inspiration and expiration

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2
Q

Tidal volume

A

The amount of air inspired and expired with each normal breath at rest or during exercise

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3
Q

Stroke volume

A

The amount of blood pumped by the heart in one beat

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4
Q

Cardiac output

A

The amount of blood pumped by the heart in one min

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5
Q

Equation for cardiac output

A

Stroke volume x heart rate

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6
Q

What muscles contract and lift you chest outwards when inspiring/inhaling

A

The intercostal muscles

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7
Q

What happens to your diaphragm when you breath in

A

The shape of the diaphragm changes from a dome shape to a flatter shape. It relaxes when we breath out

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8
Q

What process happens at the alveoli

A

Gaseous exchange

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9
Q

The alveoli is surrounded by which blood vessel

A

Capillaries

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10
Q

What happens in gas exchange

A

The air in the lungs travels from the mouth all the way to the alveoli, the deoxygenated blood which is arriving from the pulmonary artery collects the oxygen with the haemoglobin. The blood retreats back to the lungs

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11
Q

What is oxygen debt

A

The result of anaerobic exercise, oxygen debt is the amount of oxygen needed at the end of a physical activity to break down all the lactic acid.

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