Human Circulatory System

Question 0

Blood

Answer 0

Plasma and blood cells

Question 1

Blood vessels

Answer 1

Arteries, veins, capillaries

Question 2

Red blood cells

Answer 2

Has haemoglobin to carry oxygen, no nucleus, they are disc-shaped and are made in the bone marrow

Question 3

Haemoglobin

Answer 3

Carries oxygen

Question 4

White blood cells

Answer 4

Fight infection, produce antibodies, have a nucleus present and have no definite shape

Question 5

Platelets

Answer 5

Blood clothing, have no nucleus and have fragments of cells

Question 6

Plasma

Answer 6

Is 90% water, carries platelets,red and white blood cells and dissolved substances

Question 7

Functions of blood

Answer 7

Transport, defence against disease and clothing

Question 8

Arteries

Answer 8

Carry blood away from the heart

Question 9

Valves

Answer 9

To stop backflow of blood

Question 10

Cardiac muscle

Answer 10

It doesn’t fatigue or tire

Question 11

The heart

Answer 11

Is a pump located slightly to the left hand side of the chest

Question 12

The average heart rate for an adult

Answer 12

Is 70 beats per minute

Question 13

Arteries

Answer 13

Bring blood away, veins bring blood to the heart

Question 14

Why excercise

Answer 14

Excercise strengthens our lungs, hearts, other muscles and helps reduce weight

Question 15

Heart disease

Answer 15

Small arteries on the way to the heart become clogged with fat . To reduce the risk of heart disease: excersise regularly, eat a healthy diet and don’t smoke