Presentation is loading. Please wait.

Presentation is loading. Please wait.

Circulatory System. Functions Transport oxygen and carbon dioxide Distribute nutrients Transport wastes Distribute hormones Regulate body temperature.

Similar presentations


Presentation on theme: "Circulatory System. Functions Transport oxygen and carbon dioxide Distribute nutrients Transport wastes Distribute hormones Regulate body temperature."— Presentation transcript:

1 Circulatory System

2 Functions Transport oxygen and carbon dioxide Distribute nutrients Transport wastes Distribute hormones Regulate body temperature

3 The Heart Cardiac cycle Systole – ventricle contraction Diastole – relaxation of all chambers following contraction of atria

4 Bloods Path Through the Heart - Deoxygenated 1.Vena cava 2.Right atrium 3.Right ventricle 4.Pulmonary Arteries 5.Lungs

5 Bloods Path Through the Heart - Oxygenated 6.Lungs 7.Pulmonary Veins 8.Left atrium 9.Left ventricle 10.Aorta 11.Body

6 Influence on Heart Rate Nervous system Hormones

7 Functions of Blood Transport –Nutrients –Gasses –Hormones –Waste Products Immune Response

8 Blood Composition Plasma 55-60% Red blood cells – carry oxygen White blood cells - immunity Platelets – clotting ***Blood is mostly saltwater!***

9 Blood Vessels Arteries/arterioles – have smooth muscle in walls, take blood away from the heart Capillaries – very small, place where most gas exchange occurs Veins/venules – have valves, no muscle, take blood toward the heart


Download ppt "Circulatory System. Functions Transport oxygen and carbon dioxide Distribute nutrients Transport wastes Distribute hormones Regulate body temperature."

Similar presentations


Ads by Google