1. Cells  ___________  ___________  Organ systems  Organisms
Lesson Starter
Copy and complete:
Cells  ___________  ___________  Organ systems  Organisms
2. List the organ systems you can think of
3. What 3 components make up the circulatory system?

2. The Heart
Muscular
Blood, Nerve, Muscle tissue
Pumps blood around body

3. The Heart https://www.twig-world.com/film/heart- 976/ Questions..
How big is the heart (roughly)?
Roughly how many times does the heart beat each day?
How many chambers does the heart have?
Why is one side of the heart shown to be blue and one shown to be red?
Why is one side of the heart thicker than the other?
What causes the sound of the heart beat?
Write questions on board before lesson; answer in jotters as they watch clip

4. Heart Dissection

5. The heart Flipped 4 Chambers Atrium collect blood
Ventricles contract and pump blood
Cardiac muscle
Right Atrium
Left Atrium
Right Ventricle
Left Ventricle

6. The Heart (copy)
The upper chambers are the right and left atria these collect blood.
The lower chambers are the right and left ventricles, these pump blood.
The wall of the heart is made of cardiac muscle.

7. The Heart

8. Part of the Heart Function
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

9. The Heart

10. Heart Valves (copy)
Valves in the heart prevent the backflow of blood to ensure blood keeps circulating.

11. Quiz..
Throw the ball, asking a question about the blood and heart; last person standing is the winner. You must be able to answer the question you ask..