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Biology🔬 > Circulation > Flashcards

Circulation Flashcards

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1
Q

Blood transports many substances around the body. These include… (5)

A
  • Oxygen
  • Carbon dioxide
  • Urea
  • Glucose
  • Amino acids
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2
Q

We have a ? Circulation

A

Double

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3
Q

What is double circulation?

A

This means that the blood travels through the heart twice to go all around the body once.

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4
Q

What side of the heart is more muscular and why?

A

Left because it has to pump blood all around the body and the right only pumps to the lungs.

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5
Q

What are the four chambers in the heart called?

A
  • Left and right atrium

- Left and right ventricle

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6
Q

What are the three types of blood vessels?

A
  • Arteries
  • Veins
  • Capillaries
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7
Q

What is the job of the arteries?

A

To take blood away from the heart.

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8
Q

What is the job of the veins?

A

To take blood back to the heart.

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9
Q

What is the job of the capillaries?

A

To allow food and oxygen to move into the tissues where is needed and carbon dioxide to move back into the blood.

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10
Q

Blood is made up of … (4)

A
  • Red blood cells
  • White blood cells
  • Platelets
  • Plasma
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11
Q

What is the job of red blood cells?

A

They carry oxygen.

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12
Q

What is the job of white blood cells?

A

To fight bateria

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13
Q

What is the job of platelets?

A

To help blood clot.

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14
Q

What is plasma?

A

The watery liquid in the blood which carries dissolved substances.

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15
Q

A bad diet (too much fat, salt etc), stress and a lack of exercise can increase the risk of a …

A

heart attack

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16
Q

When blood enters the from the body, or is …

A

Deoxygenated

17
Q

Blood is pumped to the lungs to pick up some…

A

Oxygen

18
Q

Where does oxygenated blood travel to?

A

The heart.

19
Q

Where does oxygenated blood go after the heart?

A

The rest of the body, so that every cell gets its oxygen and can carry out he process of respiration.

20
Q

The blood flowing through the right side of the heart and going to the lungs is called…

A

Pulmonary circulation

21
Q

The blood flowing through the left side of the heart and going round the rest if the body is called the …

A

Systemic circulation

22
Q

Which blood vessel carries food to the liver for storage?

A

Hepatic portal vein

23
Q

Which blood vessel carries blood rich in oxygen away from the lungs?

A

Pulmonary vein

24
Q

Which blood vessel carries blood back to the heart?

A

Vena cava

25
Q

Which blood vessel carries blood to the lungs?

A

Pulmonary artery.

26
Q

Which blood vessel carries rich in oxygen away from the heart?

A

Aorta

27
Q

Which blood vessel carries blood to the kidneys?

A

Renal artery

28
Q

What does the heart do?

A

It pumps blood to the lungs to pick up oxygen and also pumps blood containing sugar and oxygen to every cell in the body in order to carry out respiration.

29
Q

What stops the blood from flowing the wrong way?

A

A system of one way valves keep the blood flowing the right direction and prevents back flow.

30
Q

Why are the walls of the ventricles thicker than the Atri?

A

The atria contract and squeeze the blood onto the ventricles. The ventricles must pump blood to the lungs (Right hand side) or the whole way around the body (left hand side).

31
Q

What happens to your heart when you get excited or exercise?

A

The heart rate increases with exercise or excitement. Muscles need more oxygen and sugar to work. However, the fitter you are the lower your resting heart rate is, and the faster it returns to normal after exercising.

32
Q

What causes your pulse?

A

The pressure of blood pumped from the heart going through your arteries.

33
Q

What are antibodies produced by?

A

A certain type of blood cell.

34
Q

What is the body’s pump?

A

Heart

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