B1a-fitness and health Flashcards Preview

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Flashcards in B1a-fitness and health Deck (13)
1

How does cholesterol increase the risk of heart disease?

1) Plaque forms in artery walls
2)causes Blood clot (thrombosis)

2

How does too much salt in diet increase heart disease?

1)body retains more water
2)increases blood pressure
3)heart has to pump greater volume of blood around body

3

How does smoking increase risk of heart disease?

Cigarettes contain:
-Nicotine
Makes heart beat faster
Narrows arteries
Increases blood pressure

Cigarettes produce:
-Carbon monoxide
Binds with haemoglobin in red blood cells
Red blood cells carry less oxygen

4

What is Fitness?

The ability to do physical activity

5

What is Healthy?

Being free from disease

6

How can you measure fitness?

-strength
-stamina
-flexibility
-agility
-speed
-cardiovascular efficiency

7

What is systolic pressure?

The measurement taken when the heart contracts

8

What is diastolic pressure?

The measurement taken when the heart relaxes

9

What is a normal blood pressure?

120/80 mmhg

10

What happens when blood pressure is too high?

-blood vessels burst
-stroke
-kidney failure

11

What happens when blood pressure is too low?

-dizziness
-fainting
-not enough oxygen reaches the brain

12

What are some lifestyle choices that cause Heart disease?

-too much saturated fat (cholesterol)
-too much salt in diet
-smoking
-having high blood pressure which is caused by alcohol, stress and being overweight

13

Why is blood in arteries under pressure?

-contraction of heart muscles so blood reaches all parts of the body