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Science > Circulatory System > Flashcards

Circulatory System Flashcards

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1
Q

Where is the circulatory system developed?

A

In the embryo

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2
Q

Before the blood goes to any organ, what happens?

A

The blood should be pumped so that it is always at high pressure

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3
Q

What does the circulatory system contain?

A

Blood vessels, blood and heart

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4
Q

How many pumps does the heart have?

A

2

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5
Q

What does the left pump do?

A

It pushes blood to the organs

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6
Q

What does the right pump do?

A

It pushes blood to the lungs

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7
Q

Where does the blood flow in the heart?

A

Into the heart, then the atria, then open valves, then into ventricles

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8
Q

What do the blood vessels do?

A

It allows substances to move in and out of cells

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9
Q

What do the blood vessels do?

A

It allows substances to move in and out of cells

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10
Q

Where does oxygen diffuse?

A

Out to cells

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11
Q

Where does CO2 diffuse?

A

Back to the blood

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12
Q

What is the function of the veins?

A

To carry blood towards the heart

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13
Q

What is the function of the arteries

A

To carry blood away from the heart

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14
Q

How are heart attacks caused?

A

By blockage in coronary artery

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15
Q

What is a coronary artery?

A

The blood vessels going to the muscular wall of the heart

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16
Q

What does nicotine do to the blood?

A

It makes blood more likely to form clots

17
Q

What does too much fat in diets cause?

A

It causes cholesterol to be left in the arteries

18
Q

What does high salt in diet cause?

A

It causes blood pressure to increase

19
Q

What is angina?

A

The first sign of a heart disease with several arteries becoming narrower

20
Q

When does a stroke occur?

A

When there is a blood clot in the blood vessels of the brain

21
Q

Do you hate school

A

Yes

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