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Science > Circulatory System > Flashcards

Circulatory System Flashcards

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1
Q

Oxygen

A

From inhaled air in the lungs, needed for respiration

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2
Q

Glucose

A

From digestive system, necessary for respiration and cell function

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3
Q

Carbon dioxide

A

From cellular respiration, needs to be exhaled via the lungs

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4
Q

Waste

A

From body process, needs to be excreted via the lungs, skin, kidneys

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5
Q

Components of blood

A

Red blood cells, white blood cells, plasma and platelets

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6
Q

Plasma

A

Liquid part of the blood, pale yellow mostly water.

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7
Q

Function of plasma

A

To transport heat and chemicals

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8
Q

Useful and waste chemicals that plasma transports

A

Useful- food and hormones Waste- CO2, salts and urea

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9
Q

What does plasma also carry

A

Red blood cells, white blood cells and platelets

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10
Q

Where are red blood cells located

A

In the bone marrow

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11
Q

What’s the function of red blood cells

A

Transports oxygen to cells

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12
Q

Where does the red colour of red blood cells come from

A

Haemoglobin

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13
Q

What does haemoglobin pick up in the lungs

A

Oxygen

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14
Q

What is the definite shape of white blood cells

A

No definite shape, it can change over time

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15
Q

Where are white blood cells located

A

In the bone marrow

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16
Q

What is the white blood cells function

A

To fight infection

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17
Q

What do white blood cells do

A

Some surrounded micro-organisms and destroy them,
Others produce proteins called antibodies

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18
Q

What do antibodies do

A

Antibodies help destroy micro-organisms such as bacteria

19
Q

Where are platelets formed

A

The bone marrow

20
Q

What is the platelets function

A

To help form blood clots

21
Q

How are platelets formed

A

Larger cells breaking down into pieces

22
Q

What do blood clots prevent

A

Loss of blood and prevent micro-organisms getting i

23
Q

What are the tubes that help blood flow called

A

Blood vessels

24
Q

What are the three main types of blood vessels

A

Arteries, veins and capillaries

25
Q

Where do arteries carry the blood away from

A

The heart

26
Q

What is the flow of blood like in the arteries

A

Strong and high pressure

27
Q

What are the artery walls

A

Thick and strong

28
Q

What do all arteries carry(apart from pulmonary arteries)

A

Oxygenated blood

29
Q

What do veins carry blood back to

A

The heart

30
Q

What is the flow of blood like in veins

A

Weak and the pressure is low

31
Q

What are vein walls like

A

Weak and thin

32
Q

What are in veins

A

Valves

33
Q

What do valves do in veins

A

Prevent backward flow of blood

34
Q

What do all veins(apart from pulmonary veins) carry

A

Deoxygenated blood

35
Q

What are capillaries

A

Tiny blood vessels

36
Q

Where can capillaries be found

A

In between arteries and veins

37
Q

What are capillaries walls like

A

Thin which allow materials to pass in and out

38
Q

What is the hearts function

A

Pumps blood around the body

39
Q

What special muscle does the heart have

A

Cardiac muscle

40
Q

What happens to the heart during exercise

A

It beats faster so that the blood can carry chemicals faster around the body

41
Q

What is an adults resting heart rate

A

72 bpm

42
Q

What are the two circuits

A

Pulmonary circuit and systemic circulation

43
Q

Pulmonary circuit

A

Blood leaves the heart, goes to the lungs to become oxygenated and returns to the hesrt

44
Q

Systemic circuit

A

Blood leaves the heart, travels to other parts of the body and returns to the hesrt

Science (10 decks)

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