Systemic circulation

 

General/ Systemic Circulation

Move blood between the heart and rest of the body.

Deoxygenated blood

Blood enters heart through two large veins, superior and inferior venacava.

                  Deoxygenated blood

Superior venacava       Inferior venacava

                       Right atrium

    .   ..                     ! Tricuspid vavle

    .                 Right ventricle

    .                          ! Pulmonary valve

                      Pulmonary artery 

                  Lungs (pulmonary trunk)

                 Oxygenated blood return to heart    Systemic circulation

                   Pulmonary vein

                  Left atrium

    .               ! bicuspid valve

    .             Left ventricle

    .               ! Aortic valve

    .             Aorta

    .            Systemic circulation

Function of Heart

1. Pumping oxygenated blood to other body parts

2. Pumping hormone and other vital substance to different parts of body.

3. (Produce ANT artrial natriuretic hormone, cardiac hormone; lower blood pressure and control electrolyte homeostasis )

4. Receive deoxygenated blood and pumping it lungs for air exchange.

5. Lung metabolic waste product from body

6. Maintaining blood pumping

7. Circulate nutrient throughout Circulatory system

8. Supply nutrient to tissue and remaining CO2 and other waste.