1 / 9

Circulatory System

Circulatory System. Functions. Transport oxygen and carbon dioxide Distribute nutrients Transport wastes Distribute hormones Regulate body temperature. The Heart. Cardiac cycle Systole – ventricle contraction Diastole – relaxation of all chambers following contraction of atria.

mei
Download Presentation

Circulatory System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

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. Blood’s Path Through the Heart - Deoxygenated • Vena cava • Right atrium • Right ventricle • Pulmonary Arteries • Lungs

  5. Blood’s Path Through the Heart - Oxygenated • Lungs • Pulmonary Veins • Left atrium • Left ventricle • Aorta • 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

More Related