cardiovascular system

Question 1

role of the red blood cell?

Answer 1

to carry oxygen

Question 2

role of the platelets?

Answer 2

-clots blood
-forms scabs
-stops bacteria from entering

Question 3

what are the lumen sizes?

Answer 3

vein>artery>capillary

Question 4

role of the white blood cell?

Answer 4

protect against harmful microorganisms

Question 5

role of plasma?

Answer 5

-takes nutrients, hormones and proteins to the parts of the body that need it

Question 6

whats the job of the circulatory system?

Answer 6

to transport substances around the body

Question 7

what does the circulatory system consist of?

Answer 7

-the heart
-blood vessels
-blood

Question 8

what are the three major blood vessels?

Answer 8

-veins
-capillaries
-arteries

Question 9

what are the 4 components of blood?

Answer 9

-RBC
-WBC
-platelets
-plasma

Question 10

how are red blood cells adapted to their job?

Answer 10

-increased surface area
-no nucleus
-haemoglobin

Question 11

what side of the heart has oxygenated blood passing through it?

Answer 11

the left side

Question 12

what side of the heart has deoxygenated blood passing through it?

Answer 12

the right side

Question 13

whats the job of the heart?

Answer 13

to pump blood

Question 14

the blood passes through the heart twice. what is this called?

Answer 14

double circulatory system

Question 15

how do arteries structures relate to its function

Answer 15

tough and fexible to carry and cope with high pressure blood flow

Question 16

Define organ

Answer 16

Group of different tissues working together to perform a specific function e.g. leaf

Question 17

Define organ system

Answer 17

Group of organs working together e.g. plant transport system

Question 18

how do capillaries structures relate to its function

Answer 18

thin to allow gasses to exchange

Question 19

how do veins structures relate to its function

Answer 19

contain valves to prevent blood going back the wrong direction

Question 20

What are the main differences in composition of blood taken from an artery to blood taken from a vein?

Answer 20

Artery carries more oxygen and glucose, veins carry more carbon dioxide than oxygen

Question 21

what is the process of blood clotting

Answer 21

platelets clot blood to stop injurys bleeding

Question 22

explain why people may have objections to heart transplants.

Answer 22

-Few donor hearts are available

-recovery time is long

-risk of rejection by the body’s immune system

Question 23

what are the advantages of changing lifestyle to help heart problems

Answer 23

-Reduces the risk of developing cardiovascular disease

-very little cost to patient or NHS

-has other health benefits

Question 24

what are the disadvantages of changing lifestyle to help heart problems

Answer 24

Some people may find making changes difficult.

Question 25

what are the disadvantages of statins to help heart problems

Answer 25

-Not suitable for people with liver disease -some side effects -must be taken for life

Question 26

what are the advantages of statins to help heart problems

Answer 26

-reduces the risk of heart attack studies have shown a decrease in cholesterol in the blood

Question 27

what are the advantages of stents to help heart problems

Answer 27

-Widens coronary arteries that don't respond to drug treatment -recovery time is short

Question 28

Function of vena cava

Answer 28

transports deoxygenated blood from the body to the heart

Question 29

Function of the Pulmonary Artery

Answer 29

Transports deoxygenated blood from the heart to the lungs

Question 30

Function of the aorta

Answer 30

Transports oxygenated blood from the heart to the body

Question 31

Function of the Pulmonary Vein

Answer 31

Transports oxygenated blood from the lungs to the heart

Question 32

Function of the Right Atrium

Answer 32

Pumps deoxygenated blood to right ventricle

Question 33

Function of Right Ventricle

Answer 33

Pumps deoxygenated blood to the lungs

Question 34

Function of Left Ventricle

Answer 34

Pumps oxygenated blood to the body

Question 35

Function of the Valves

Answer 35

Prevents blood from back-flowing and helps pump the blood in the right direction