1. Control of the Cardiac Cycle
L.O: to list the three structures involved in controlling the cardiac cycle
to describe how the cardiac cycle is controlled
Starter: Complete the table below using the words ‘open’ or ‘closed’
Stage
Atrioventricular valves
Semi lunar valves
Diastole
Atrial Systole
Ventricular Systole

2. Atrioventricular valves
Cardiac Cycle
Stage
Atrioventricular valves
Semi lunar valves
Diastole
Atrial Systole
Ventricular Systole

3. Atrioventricular valves
Cardiac Cycle
Stage
Atrioventricular valves
Semi lunar valves
Diastole
Open
Closed
Atrial Systole
Ventricular Systole

4. 1.

5. 2.

6. 3.

7. 4. ?

8. 5.

9. 6.

10. 7.

11. Blood Pressure
Systolic pressure is the pressure at which the blood leaves the heart through the aorta.
Diastolic pressure is the minimum blood pressure in the aorta.
Blood pressure can be measured with a sphygmomanometer: first reading is systolic and second is diastolic then represented as a fraction.
Systolic
Diastolic
< normal
< 100
< 60
Normal
60-89
Borderline
90-94
Hyper-tension
>159
>94

12. Control of the Cardiac Cycle

13. Control of the Cardiac Cycle
Three stages of the cardiac cycle are controlled by three structures:

14. Control of the Cardiac Cycle
The three stages of the cardiac cycle are controlled by three structures:
Sinoatrial node
Atrioventricular node
Bundle of His

15. Control of the Cardiac Cycle
Write in your own words what happens during the cardiac cycle
Use the heart structure worksheet to help you
Use as many keywords / structures as possible!

16. Keyword Quiz!
Unjumble the keywords about the heart to solve the hidden message at the bottom of your sheet!

17. n