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19 Cards in this Set
- Front
- Back
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What is heart rate |
The number of times the cardiac cycle occurs in 1 minute |
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What is systolic blood pressure |
The pressure on the artery walls when the heart contracts |
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What is diastolic blood pressure? |
The pressure on the artery walls when the heart relaxes |
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What is Stroke volume |
The volume of blood ejected into the aorta in every heart bear |
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What is the cardiac output? |
The volume of blood ejected into the aorta every minute
Calculated by multiplying stroke volume by heart beat |
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What type of blood vessel carries blood away from the heart |
Arteries |
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What type of blood vessel carries blood to the heart? |
Veins |
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What is residual volume |
The 1 litre of air that is always present in the lungs |
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What is tidal volume |
The amount of air taken in and out of the lungs in one breath (At rest 500ml) |
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What is ventilation? |
Tidal volume x breaths per minute
Measured in litres per min |
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What is forced maximum inspiration |
Amount of air taken in when you exhale normally and then breathe in as much as possible |
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What is forced maximum expiration |
Amount of air out when you breath in normally then breathe out as much as possible |
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What is vital capacity? |
Amount of air out after forced maximum inspiration then forced maximum expiration |
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What is lung capacity? |
Residual volume plus vital capacity |
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What is the order of the respiratory tract |
Mouth-must Pharynx-purchase Larynx-large Trachea-trousers Bronchi-because Bronchioles-big Alveoli-arse |
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How much oxygen is inhaled in air and how much is exhaled? |
21% inhaled 16% exhaled |
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How much co2 is inhaled in the air and how much exhaled? |
<1% inhaled 4% exhaled |
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Factors which aid venous return |
Gravity (above heart) Non return valves Diaphragm-suction Right atrium- suction Smooth muscle contractions Skeletal muscle contractions |
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What do systolic and diastolic blood pressures do during exercise |
Systolic pressure increases diastolic no change or decreases |
