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Healthy Heart And Lungs Flashcards

1
Q

Blood is composed of different type of cells floating in a liquid called?

A

The liquid is called plasma.

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2
Q

Blood that contains red blood cell, white blood cells and smaller particles is called?

A

blood that contains red blood cells, white blood cells an smaller particles are called platelets

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3
Q

What is the function of the red blood cells?

A

Red bloods cell transport oxygen and contain the pigment haemoglobin.

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4
Q

What is the function of the white blood cells?

A

White blood cells destroy bacteria and foreign particles e.g viruses

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5
Q

What are white blood cells part of in the body?

A

White blood cells are part of the immune systems

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6
Q

What are the two main types of white blood cells

A

They are called phagocytes ad lymphocytes

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7
Q

What is the function of phagocytes

A

Phagocytes carry out phagocytosis by engulfing bacteria

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8
Q

What is the function of lymphocytes

A

Lymphocytes produce specific antibodies which destroy viruses

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9
Q

What are antibodies

A

Antibodies have a specific complementary biding sites for only one type of foreign particle e.g virus.

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10
Q

How do vaccines work

A

Vaccines allow dead or altered form of the foreign particles to be introduce into the body so the immune system recognises it on exposure

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11
Q

How do platelet help the blood

A

Platelet help the blood to clot and reduce bleeding

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12
Q

What is the function of the heart

A

The heart pump blood around the body

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13
Q

What is the heart made of

A

The heart us made of cardiac muscle and pumps continuously

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14
Q

What are they chambers of the heart

A

The heart has four chamber; the right atrium the left atrium, the right ventricle ad the left ventricle

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15
Q

What does your pulse indicate

A

Your pulse can be a health indicator

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16
Q

What does it mean when the resting heart rate is lower

A

The person is fitter

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17
Q

What does it mean with the resting heart rate is very high

A

Is mean the person is unhealthy and this can lead to heart disease or stroke

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18
Q

What are low tech method of measuring pulse rate

A

A stop watch and fingertip or stethoscope

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19
Q

What is a high tech method of measuring a pulse rate

A

By using a pulse meter or a heart rate monitor liked to a computer

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20
Q

What is the function of arteries

A

The arteries carry blood away from the heart

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21
Q

What are the function of veins

A

Vein carry blood back to the heart

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22
Q

Veins contain valves

what is the function of valves

A

Valves are prevent black flow of blood

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23
Q

What are capillaries

A

Capillaries are small vessels which form a network between arteries and veins

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24
Q

What is oxygenated blood

A

Oxygenated blood is rich in oxygen

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25
What is deoxygenated blood
Deoxygenated blood is rich in carbon dioxide
26
What are the four blood vessels leading to and from the heart
The aorta, pulmonary artery, pulmonary vein ad the vena cava
27
What is the function of the aorta
The aorta carries oxygenated blood away from the heart to the rest of the body.
28
What is the function of the vena cava
The vena cava returns deoxygenated blood from the body back to the heart.
29
What Is he function of the pulmonary artery
The pulmonary artery carries deoxygenated blood away from the heart to the lungs.
30
What is the function of the pulmonary vein
The pulmonary vein returns oxygenated blood from the lungs to the heart
31
Why is The muscular wall of the left-hand side of the heart is thicker than the right- hand
The muscular wall of the left-hand side of the heart is thicker than the right- hand side since it has to pump blood all round the body, whereas the right- hand side only has to pump it as far as the lungs.
32
What odes the coronary artery supplies
The coronary artery supplies the muscular wall of the heart with oxygenated blood
33
What is blood pressure
When the heart contracts and pumps blood into arteries under pressure, this pressure is called blood pressure
34
What can blood pressure be mesure by
Blood pressure can be measured using either a stethoscope & mercury manometer or a digital sphygmomanometer
35
When does systolic pressure occur
Systolic pressure occurs when the heart beats & pumps blood into the arteries giving an average reading of 120 mmHg
36
What is diastolic pressure
Diastolic pressure occurs between beats when the heart relaxes & fills with blood giving an average reading of 80 mmHg
37
What is the average blood pressure
The average blood presser is a adult is 120/80mmHg
38
What is the reading of high blood pressure
Blood pressure that is greater than 160/90 mmHg
39
What is high blood pressure cause by?
High blood pressure is caused by: being overweight, lack of exercise, incorrect diet( fats and salts), drinking alcohol excessively and stress
40
What can high blood pressure cause?
High blood pressure can cause heart attack or strokes
41
What causes low blood pressure
Low blood pressure can cause fainting and heart failure
42
What is the function on the lungs
Lungs inflate to take air into the body & deflate to remove air from body
43
What is the function of the windpipe
The windpipe allows air to flow from the mouth or Mose toward the lungs
44
What is the bronchi
The bronchi are the 2branches that join the windpipe to the lungs
45
What are bronchioles
Bronchioles are branches for the bronchi which lead to the air sacs
46
What is the function of the air sacs
Air sac allows oxygen to pass from the lungs into the blood ad carbo dioxide to pass from the blood to the lungs
47
What is the function of the ribs
The ribs shield and protect the lungs
48
What are air sac surrounded by
Air sacs is thin walled and surrounded by capillaries
49
What does breathing rate mean
Breathing rate is the number of breathed you take in one minute
50
Your breathing rate will alter according to what
To your level of activity
51
Why is breathing rate different
Breathing rate is different between individuals depending on their age, sex, fitness and state of health
52
What does exercise result in
Exercise results in faster, deeper breathing to get more oxygen to muscles & get rid of waste carbon dioxide
53
What happened i recovery time
Recovery time is the time required after exercise for rate & depth of breathing to return to normal
54
What does a short recovery time mean
A short recovery time indicates fitness
55
How can the efficiency of the lungs be measures
The efficiency of the lungs can be measured using tidal volume, vital capacity and peak flow
56
What is tidal volume
The tidal volume is the volume of air breathed in and out in one normal breath
57
How does tidal volume varies depending on
Tidal volume varies depending on body size, age, sex & level of fitness
58
How is vital capacity measured
Vital capacity is a measure of the maximum volume of air that a person can breathe out after having taken in as deep a breath as possible
59
What is peak flow
Peak flow is the maximum rate that you can blow air out of your lungs and is measured using a peak flow meter
60
What is asthma
Asthma is a respiratory condition in which the air passages (bronchioles) become narrower making breathing difficult causing wheezing

Biology (1 decks)

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