Blood And The Heart

Question 1

Components of blood

Answer 1

Plasma, platelets, red blood cells and white blood cells

Question 2

What is the function of plasma

Answer 2

It is 55% of blood and carries dissolved substances and blood cells around the body

Question 3

What is the function of platelets

Answer 3

They are the smallest of blood cells and they stop wounds from bleeding

Question 4

What are the 3 main different types of blood vessels

Answer 4

Arteries, capillaries and veins

Question 5

Describe an artery

Answer 5

It carries blood away from the heart, and the walls are thick muscular and elastic because there is blood at high pressure. (pulse)

Question 6

Describe a capillary

Answer 6

Tiny and thin walls, exchange O2, sugar, CO2 with cells

Question 7

Describe a vein

Answer 7

Carries blood into the heart. Valves to stop backflow

Question 8

(heart) The function of the heart is…

Answer 8

To pump blood through the blood vessels, it is made of muscle.

Question 9

What do arteries and veins do with the blood

Answer 9

Arteries take blood away from the heart and veins take blood into heart