Thoracic Cavity & Viscera A. Azami, Ph.D.
Body Cavities Figure 1.9
Hemo-thorax
Pneumo-thorax Lung: collapse
Medistinum Figure 1.9
Fig. 59.12 Dissection to display the neonatal thymus.
Heart Covering Pericardial physiology Protects and anchors heart Prevents overfilling Figure 17.2
External Heart: Anterior View Figure 17.4b
External Heart: Posterior View Figure 17.4d
External Heart: Anterior View Figure 17.4b
External Heart: Anterior View Figure 17.4b
Heart Valves Figure 17.9
Heart Valves Figure 17.10
External Heart: Posterior View Figure 17.4d
Pathway of Blood through the Heart and Lungs Figure 17.5
Relative thickness of muscular walls
“EKG” (or ECG, electrocardiogram) Electrical depolarization is recorded on the body surface P wave=atrial depolarization QRS=ventricular depolarization T wave=ventricular repolarization
Cardiac muscle (microscopic)