Biology: Year 9 Term 3: Cardiovascular Diseases

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Define cardiovascular disease (2)
A disease affecting the blood vessels, heart, valves and/or beat rhythm
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Define coronary artery (1)
One of the arteries supplying the heart
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What causes cardiovascular diseases? (2)
Plaque buildup in the coronary arteries
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Identify 5 ways of reducing the risk of a heart attack (5)
Consume Fibre, Exercise, Take Aspirin, Eat Less Sugar, Take Statins
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What is a stent? (2)
A metal mesh placed in an artery to allow blood flow
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Identify an advantage of a stent (1)
Effective for a long time
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Identify a disadvantage of a stent (1)
Risk of blood clots
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What is a heart bypass? (2)
A vessel from elsewhere in the body being used to bypass a blockage via a different route
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Identify an advantage of a bypass (1)
Restores blood flow easily
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Identify a disadvantage of a bypass (1)
Expensive/invasive surgery
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What are statins? (3)
Medications which reduce LDLs (bad cholesterol) and increase HDLs (good cholesterol)
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Identify an advantage of statins (1)
Prevent rather than cure
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Identify a disadvantage of statins (1)
Long-term drug (inconvenient)
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What is a natural pacemaker? (3)
The electrical signals sent from the right atrium to control heartbeat rhythm
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What is an artificial pacemaker? (3)
An electrical device implanted in the chest to regulate arrhythmia
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What is the problem with a slow heart? (1)
Less respiration can occur
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What is the problem with a fast heart? (1)
The pumping is less effective
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What are faulty valves? (2)
Stiff or leaky valves
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What is a mechanical valve replacement? (2)
An artificial valve implanted to control blood flow
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Identify an advantage of a mechanical valve replacement (1)
Cheaper than biological
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Identify a disadvantage of a mechanical valve replacement (1)
Patients must take blood-thinning drugs
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What is a biological valve replacement? (2)
An animal tissue valve implanted to control blood flow
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Identify an advantage of a biological valve replacement (1)
Smaller risk of blood clotting
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Identify a disadvantage of a biological valve replacement (1)
Unethical as from animal tissue
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What is an artificial heart? (2)
A mechanical heart can be inserted before a transplant is available (for up to 3 years)
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Other cards in this set

Card 2

Front

Define coronary artery (1)

Back

One of the arteries supplying the heart

Card 3

Front

What causes cardiovascular diseases? (2)

Back

Preview of the front of card 3

Card 4

Front

Identify 5 ways of reducing the risk of a heart attack (5)

Back

Preview of the front of card 4

Card 5

Front

What is a stent? (2)

Back

Preview of the front of card 5
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