2. Transport system pump Using blood as the transport medium, the heart continually propels oxygen, nutrients, wastes, into the innerconnecting blood vessels that service body cells. Heart:
3. The Heart Here you can see the size and parts of the heart
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6. Coverings of the Heart The heart is enclosed in a double-walled sac called the Pericardium. The loosely fitting superficial part of this sac is called the Fibrous Pericardium. This dense connective tissue protects , archors it to surrounding structures, and prevents overfilling of the heart with blood.
8. Two Atria Two Ventricles The internal partition that divides the heart longitudinally is called the Interatrial Septum, where it separates the atria, and the Interventricular Septum, where it separates the ventricles. Chambers of the Heart
9. Chambers of the heart This picture reveal the four chambers of the heart
10. The heart is two side-by-side pumps, each serving a separate blood circuit. The blood vessels that carry blood to and from the lungs form the Pulmonary Circuit, which serves gas exchange. The blood vessels that carry the functional blood supply to and from all body tissues constitute the Systemic Circuit. Pathway of blood
11. Pathway of blood these are the arteries and veins in which blood flow through to the heart
12. Conclusion The Heart serve as one of the most important functions of the body. The ceaselessly beating heart has intrigued people for centuries. People has thought of the heart as the source of emotions. While these theories have proved false, we do know that the emotions affect the heart rate. Overall, the cardiovascular system provides the transport system "hardware" that keeps blood continuously circulating to fulfill this critical homeostatic need.
