1. Thoracic viscera

2. Plural Cavities
Figure 1.9

5. Development of serousal cavities

6. Development of Pleural cavities

8. Hemo-thorax

10. Pneumo-thorax
Lung: collapse

14. Mediastinum
Figure 1.9

20. Heart Covering Pericardial physiology Protects and anchors heart
Prevents overfilling
Figure 17.2

21. External Heart: Anterior View
Figure 17.4b

22. External Heart: Posterior View
Figure 17.4d

23. External Heart: Anterior View
Figure 17.4b

25. External Heart: Anterior View
Figure 17.4b

27. Heart Valves
Figure 17.9

29. Heart Valves
Figure 17.10

30. External Heart: Posterior View
Figure 17.4d

34. Figure 17.4b

35. Pathway of Blood through the Heart and Lungs
Figure 17.5

36. Relative thickness of muscular walls

37. “EKG” (or ECG, electrocardiogram)
Electrical depolarization is recorded on the body surface
P wave=atrial depolarization
QRS=ventricular depolarization
T wave=ventricular repolarization

40. Cardiac muscle (microscopic)