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Science > Circulatory system > Flashcards

Circulatory system Flashcards

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1
Q

Vessels which carry blood away from the heart

A

Inferior vena cava

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2
Q

Vessels which carry blood toward the heart

A

Superior vena cava

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3
Q

Tiny blood vessels with walls that are only one cell thick

A

Capillaries

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4
Q

Thick wall that divides the heart into two sides

A

Septum

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5
Q

Upper chambers of the heart that receive blood

A

Left atrium and right atrium

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6
Q

Lower chambers of the heart that pump blood out of it

A

Left and right ventricles

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7
Q

Valve between right atrium and right ventricle

A

Tricuspid valve

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8
Q

Valve between the left atrium and the left ventricle

A

Mitral valve

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9
Q

Valves found between the ventricles and blood vessels

A

Pulmonary and aortic valves

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10
Q

Membrane around the heart

A

Pericardium

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11
Q

The only artery in the body rich in carbon dioxide/carries blood from the heart to the lungs

A

Pulmonary artery

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12
Q

The only vein in the body rich in oxygen/brings blood from the lungs to the heart

A

Pulmonary vein

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13
Q

Starting from and ending with the right atrium, trace the flow of blood through the heart and body by putting these in the correct order.

Aorta, pulmonary artery, body cells, pulmonary veins, left ventricle, lungs, right atrium, vena cava, right ventricle, right atrium

A
  1. Right atrium
  2. Right ventricle
  3. Pulmonary artery
  4. Lungs
  5. Pulmonary veins
  6. Left atrium
  7. Left ventricle
  8. Aorta
  9. Body cells
  10. Vena cava
  11. Right atrium
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14
Q

Starting from and ending with the heart, trace the blood flow through the human circulatory system by putting these in the correct order.

Veins, arterioles, capillaries, venules, heart, arteries,

A
  1. Heart
  2. Arteries
  3. Arterioles
  4. Capillaries
  5. Venules
  6. Veins
  7. Heart
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15
Q

Blood vessels that carry blood away from your heart to other parts of your body

A

Arteries

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16
Q

Air sacs where oxygen enters the blood and carbon dioxide leaves the blood

A

Alveoli

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17
Q

Tubes that branch into smaller and smaller tubes

A

Bronchioles

18
Q

Liquid that carries cells, food, waste, and oxygen in the blood stream

A

Plasma

19
Q

These form blood clots

A

Platelets

20
Q

The exchange of oxygen and carbon dioxide in the blood stream

A

Pulmonary circulation

21
Q

Carry oxygen to the body’s cells

A

Red blood cells

22
Q

Meaning the whole system

A

Systemic

23
Q

Blood vessels form a network through the body

A

Circulation

24
Q

A tube that carries air from the larynx to the lungs

A

Trachea

25
Q

Blood vessels that take blood from cells back to the heart

A

Veins

26
Q

These fight bacteria

A

White blood cells

27
Q

How does the diaphragm work to help you breathe?

A

It moves down and gets flatter to allow air to get in

28
Q

Which part of your heart is the strongest? Why?

A

Left ventricle because it pumps all the blood throughout the body

29
Q

What two things happen in the alveoli?

A

Oxygen enters the blood and carbon dioxide leaves the blood.

30
Q

How do the circulatory and respiratory systems work together?

A

The RESPIRATORY system gets oxygen into the CIRCULATORY system. Then the CIRCULATORY system takes the oxygen, through the blood stream, to other parts of the body.

31
Q

True or false? Capillaries are only two cells thick.

A

False. They are only one cell thick.

32
Q

True or false? The pulmonary artery is the only artery in the body rich in oxygen.

A

False. It is the only artery rich in carbon dioxide.

33
Q

True or false? The tricuspid valve is the valve between the right atrium and the right ventricle.

A

True

34
Q

The mitral valve is located between what two parts?

A

Left atrium and left ventricle

35
Q

If you have a low white blood cell count, what is likely to happen?

A

You might get sick, because white blood cells fight bacteria. If you don’t have a lot of white blood cells, bacteria can get in your body and make you sick.

36
Q

Explain the difference between the upper and lower chambers of the heart.

A

The UPPER chambers (the right and left atria) receive blood, and the LOWER chambers (left and right ventricles) pump blood out of the heart.

37
Q

Where would you find plasma?

A

In the blood stream.

38
Q

On average, people have about how many red blood cells in their body?

A

20-25 trillion

39
Q

When a blood vessel is injured, what helps the blood clot and seal the cut?

A

Platelets

40
Q

What is the largest artery in the body?

A

The aorta

41
Q

The blood gets oxygen from your ———–.

A

Lungs

42
Q

What 4 parts make up the blood?

A

Plasma
Red blood cells
White blood cells
Platelets

Science (6 decks)

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