Blood Vessels
- Created by: Megannia2000
- Created on: 13-04-17 10:48
View mindmap
- Arteries, Veins, & Capillaries
- Arteries
- Carry blood away from heart at high pressure.
- Thick muscular walls as carry blood away at high pressure away from heart.
- Carry oxygenated blood (except pulmonary artery)
- Thin, tough outer layer
- Thin muscular middle layer
- Thin inner layer of cells
- small lumen
- have a pulse
- no valves
- Carry blood away from heart at high pressure.
- Veins
- Carry blood towards heart at lower pressure
- Carry de-oxygenated blood except for pulmonary vein.
- Thinner, more flexible walls as carry blood under lower pressure back to heart
- Thick, tough outer layer
- Muscular middle layer
- Thin inner cell layer
- Capillaries
- Penetrate all tissues via diffusion
- only one cell wide
- allow transport of oxygen and nutrient into body cells, and waste out of cells
- The blood in capillaries supplies nearby cells with oxygen, food molecules and other substances. It also carries waste substances away from cells
- smallest blood vessel that carries blood through organs of body
- form extensive networks so no cell is far from a capillary
- Thin walls to allow diffusion in and out of cells
- Arteries
Comments
No comments have yet been made