1. Lesson Starter Name the 4 chambers in the heart
Describe the purpose of valves
What is the function of the aorta?
What does the word pulmonary refer to?

2. Learning Intention
To learn about the different blood vessels in the heart
To learn about resting heart rate

3. Left and right ventricle
Part of the heart
Function
Left and Right Atrium
Collect blood
Left and right ventricle
Pump blood
Vena Cava
Carries deoxygenated blood to the heart
Pulmonary Artery
Carries blood from right ventricle to lungs
Aorta
The main artery of the body, supplying oxygenated blood to the circulatory system
Pulmonary Vein
Receive oxygenated blood from the lungs
Valves
Prevent backflow of blood

4. Circulation of blood through the heart
Blood high in oxygen is called oxygenated blood
Oxygenated blood returns from the lungs…
in the pulmonary vein
enters the left atrium
into the left ventricle
out through the aorta
to the body

5. enters the right atrium into the right ventricle
Blood low in oxygen is called deoxygenated blood.
Deoxygenated blood returns from the body tissues…
in the vena cava
enters the right atrium
into the right ventricle
out through the pulmonary artery
to the lungs where it picks up oxygen

6. Arteries
Carry Blood AWAY from the heart (always oxygenated apart from the pulmonary artery which goes to the lungs)
Thick elastic walls, small passageways- withstand high pressure
Pulsate
Deep in body- protect them

7. Veins
Carry blood BACK to the heart (always de-oxygenated apart from the pulmonary vein which goes from the lungs to the heart)
Thin walled
Large internal passageways, Low pressure, – so low it needs valves
One way system- valves

8. Capillaries Tiny Walls only one cell thick
Permeable (unlike arteries and valves)
Diffusion of useful substances eg gas exchange

9. Blood vessels and circulation (copy)
Blood is carried round the body in blood vessels.
There are 3 major types of blood vessel: Arteries, Capillaries, and Veins.
Blood is carried AWAY from the heart in the ARTERIES at HIGH PRESSURE and is carried back to the heart in the VEINS at LOW PRESSURE.
Veins have VALVES to prevent backflow of blood- ensuring that the blood is circulated one way.

10. Resting Heart rate(copy)
Your resting heart rate (RHR) is the number of times your heart beats per minute while at complete rest. 

11. Pulse rate Resting rate- measure Star jumps- 2 mins
After exercise – measure
Measure you HR every minute after exercise until it returns to resting
Before exercise
After exercise
Heart rate (bpm)

12. Why does the pulse rate increase with exercise?
Think..
Why does the pulse rate increase with exercise?

13. Graph
Using the data you have gathered; draw a graph to show your heart rate vs time after exercise