1.2 The structure and function of the cardio-respiratory system Flashcards Preview

SHHS - GCSE PE Unit 1 > 1.2 The structure and function of the cardio-respiratory system > Flashcards

Flashcards in 1.2 The structure and function of the cardio-respiratory system Deck (57)
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1

What does cardio-respiratory stand for?

The interaction of the heart and lungs to supply oxygen and remove carbon dioxide

2

What are the three functions of the cardiovascular system?

Transportation of oxygen, carbon dioxide and nutrients
Helps clot the blood
Controls body temperature

3

What part of the blood allows the blood to clot?

Platelets

4

What is the name given to the process of a blood vessel narrowing to help warm the body up?

Vasocontriction

5

What is the name given to the process of a blood vessel widening to help cool the body down?

Vasodilation

6

Name the different components of the cardiovascular system

Heart
Blood
Blood vessels

7

What is the name of the blood vessel the takes blood from the lungs to the heart?

Pulmonary vein

8

What is the name of the blood vessel that takes blood from the heart to the lungs?

Pulmonary artery

9

What is the name of the blood vessel that take blood away from the heart to the rest of the body?

Aorta

10

What is the name of the blood vessel that takes blood from the rest of the body to the heart?

Vena Cava

11

Name the valve between the ventricles and the pulmonary blood vessels

Semi lunar valve

12

Name the valve between the right atrium and right ventricle

Tricuspid valve

13

Name the valve between the left atrium and the left ventricle

Bicuspid valve

14

What is the name given the the part of the heart that separates the left and right side?

Septum

15

Does the aorta carry oxygenated or deoxygenated blood

Oxygenated

16

Does the vena cava carry oxygenated or deoxygenated blood?

Deoxygenated

17

Does the pulmonary artery carry oxygenated or deoxygenated blood?

Deoxygenated

18

Does the pulmonary vein carry oxygenated or deoxygenated blood?

Oxygenated

19

What is blood pressure?

The pressure of the blood against the walls of the blood vessels.

20

Define systole

The phase of the heartbeat when the heart contracts and pumps blood from the ventricles

21

Define diastole

The phase of the heart beat when the heart muscles relaxes and the heart fills with blood

22

During exercise what happens to blood pressure?

It increases

23

Why does blood pressure increase during exercise?

More blood is being pumped around the body therefore there is more pressure of the blood vessel walls

24

Describe the structure and function of an artery

Narrow lumen
Carry blood away from the heart
Thick walls and more elastic

25

Describe the structure and function of a vein

Wide lumen
Thin walls
Carry blood towards the heart

26

Describe the structure and function of a capillary

One cell thick
Where gaseous exchange takes place
Link arteries and veins

27

What is the name given to the process of redirecting blood around the body?

Vascular shunting

28

When we exercise what happens to blood flow to our organs?

It decreases

29

What happens to the blood vessels going to our organs when we exercise and why?

They vasoconstrict to reduce the amount of blood going to the organs. This means more blood can go to the working muscles.

30

When we exercise what happens to blood flow to the working muscles?

It increases