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Biology > The heart > Flashcards

The heart Flashcards

1
Q

What is the top left chamber of the heart on the diagram?

A

Right atrium

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2
Q

What is the top right chamber of the heart on the diagram?

A

Left atrium

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3
Q

What is the bottom left chamber of the heart on the diagram?

A

Right ventricle

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4
Q

What is the bottom right chamber of the heart on the diagram?

A

Left ventricle

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5
Q

What is the left input on the diagram called?

A

Vena cava

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6
Q

What is the left output on the diagram called?

A

Pulmonary artery

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7
Q

What is the right output on the diagram called?

A

Aorta

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8
Q

What is the right input on the diagram called?

A

Pulmonary vein

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9
Q

Where is the shape of the muscular heart wall thicker and why?

A

Thicker on the left (right on diagram) because it has to pump blood all around the body

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10
Q

Why does the heart have valves?

A

So blood doesn’t flow backwards

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11
Q

What does the Vena Cava do?

A

Brings deoxygenated blood into the heart

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12
Q

What does the pulmonary artery do?

A

Takes deoxygenated blood to the lungs

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13
Q

What does the aorta do?

A

Carries oxygenated blood around the body

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14
Q

What does the pulmonary vein do?

A

Brings oxygenated blood from the lungs

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15
Q

Is the aorta a vein or an artery?

A

Artery

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16
Q

Is the Vena Cava a vein or an artery?

A

Vein

17
Q

What is the difference between veins or arteries? (3 differences)

A
  • Arteries carry blood away from the heart
  • Veins carry blood towards the heart
  • Arteries carry oxygenated blood (except pulmonary artery)
  • Veins carry deoxygenated blood
  • Arteries have thicker, more muscular walls because of higher pressure
  • Veins have thinner walls because of lower pressure
18
Q

What does pulmonary mean?

A

Relating to the lungs

19
Q

What are coronary arteries?

A

They supply blood to the heart muscle

20
Q

What is coronary heart disease? (and causes and cures and why it’s bad)

A

-The coronary arteries, which supply blood to the heart muscles, become narrow.
- Usually caused by a buildup of fatty material
- Its bad because it reduces bloodflow to the heart muscle, which can cause heart attacks, pain and even death
- Stent and statin can cure coronary heart disease

21
Q

What is a stent?

A

A metal mesh that is placed in the artery then inflated by a small balloon. Once the balloon is removed, the mesh stays open, holding the artery open

22
Q

What is a statin?

A

Medicine that reduce blood cholesterol levels, slowing down the rate at which fatty material is deposited in the coronary arteries

23
Q

Pros and cons of stent

A

Pros:
- Works for a long time
- Fast recovery from surgery
Cons:
- Needs surgery (risk of infection)

24
Q

Pros and cons of statin

A

Pros:
- Decreases blood cholesterol
- No surgery
Cons:
- Needs to be taken regularly
- Will have possible side effects
- Long term
- Effects take time

Biology (15 decks)

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