1 / 7

Blood Vessels

Blood Vessels. Arteries, Veins and Capillaries (Arterioles and Venules ). Arteries. Carry blood away from the heart High pressure Carry oxygenated blood (except for the pulmonary artery) Thick muscular walls – 3 layers Thin tough outer layer Thick muscular middle layer

jovita
Download Presentation

Blood Vessels

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. Blood Vessels Arteries, Veins and Capillaries (Arterioles and Venules)

  2. Arteries • Carry blood away from the heart • High pressure • Carry oxygenated blood (except for the pulmonary artery) • Thick muscular walls – 3 layers • Thin tough outer layer • Thick muscular middle layer • Thin inner layer of cells • Small lumen • Do have a pulse • No valves

  3. Veins • Carry blood toward the heart • Low pressure • Carry deoxygenated blood (except for the pulmonary artery) • Thinner more flexible walls – 3 layers • Thick tough outer layer • Muscular middle layer • Thin inner layer of cells • Large lumen • Does not have a pulse • Valves present

  4. Capillaries • Penetrate all tissues • Connect veins and arteries • Very narrow – only one cell wide • One cell thick walls – allows transport of oxygen and nutrient into body cells and wastes out of cells

  5. Red Blood Cell • The main function of red blood cells is to distribute oxygen to body tissues and to carry waste carbon dioxide back to the lungs. • Biconcave: disc like cells • Don’t contain a nucleus

More Related