1. Inquiry into Life Chapter 13 Image Slides* Sylvia S. Mader
Tenth Edition
Sylvia S. Mader
Chapter 13
Image Slides*
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2. Units J +K – CardioVascular System
co13
Units J +K –
CardioVascular
System

3. Fig. 13.4a
THE HEART

4. Fig. 13.3a

5. Fig. 13.4a

6. Fig. 13.3b

7. Myocardium – Heart Muscle
Cardiac Muscle tissue
Myocardium – Heart Muscle
What are intercalated discs?

8. VALVE FUNCTION

9. Fig. 13.4b

10. SKETCH A
HEART

11. Practice (our goal) Quiz
TA p259 F1 F2 R

12. Fig. 13.5
Cardiac Cycle

13. Cardiac Cycle
When walls of a chamber come together to pump blood it is known as SYSTOLE

14. When the walls of a chamber are relaxed and spread apart to fill with blood, this is known as DIASTOLE.

15. The Cardiac Cycle is the events that take place from the start of one Atrial Systole to the start of the second Atrial Systole.
TIME ATRIA VENTRICLES
0.15 sec SYSTOLE DIASTOLE
0.30 sec DIASTOLE SYSTOLE
0.40 sec DIASTOLE DIASTOLE
Total time required to complete one cycle = 0.85 seconds.
Therefore, a typical heart rate will be about 70 complete cycles (beats) per 60 seconds/(1 minute)

16. Fig. 13.5

17. Controlling the Cardiac Cycle
Two ways of controlling heart rate involve either Nerve Impulses or Hormones.

18. NODAL TISSUE
Nodal Tissue is special tissue that is rich in both muscle and nerve tissue.

19. Fig. 13.6
EKG/ecg
ELECTROCARDIOGRAM

22. Extrinsic Control
of the heart

23. Nervous System Control
Of the Heart

24. Parasympathetic = Normal Sympathetic = Emergency

25. Blood Pressure Monitor –AKA - Sphygmomanometer

26. HYPER = High TENSION = Pressure
HYPERTENSION
HYPER = High TENSION = Pressure

27. HYPO = Low TENSION = Pressure
HYPOTENSION
HYPO = Low TENSION = Pressure