Circulatory System

Question 1

3 main components in the circulatory system

Answer 1

Blood
blood vessels
Heart

Question 2

How much blood is in an adult

Answer 2

5.5litres

Question 3

What is blood made up of

Answer 3

Plasma
Red blood cells
White blood cells
Platelets

Question 4

How is a red Blood cell adapted to carrying oxygen

Answer 4

Contains haemoglobin 
No nucleus
Bi-concave shape
Large surface area compared
The average red blood cell is slightly larger than a capillary so it is forced to slow down

Question 5

3 types of blood cell in plasma

Answer 5

Red blood cell
White blood cell
Platelets

Question 6

What happens red blood cells in a high concentration of water

Answer 6

They will lyse

Question 7

What do capillaries do

Answer 7

Link arteries to veins

Gas exchange

Question 8

2 Parts to double circulatory system

Answer 8

Systemic and pulmonary

Question 9

What is cardiac output

Answer 9

The amount of bloood pumped by the heart per minute

Question 10

What are the 4 chambers of the heart

Answer 10

Right atrium
Left atrium
Right ventricle
Left ventricle

Question 11

2 sets of valves and What They do

Answer 11

Atrioventricular valves- prevent black flow of blood between the ventricles and atrium
Semi-lunar valves- prevent back flow of blood into the ventricles

Question 12

Symptoms of anemia 4

Answer 12

Tiredness- lack of energy
Shortness of breath
Noticeable heartbeats (heart palpitations)
Pale skin