Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
I can describe blood vessels. I can describe blood vessel dilation. I can describe blood vessel constriction. I can explain what blood vessels do when my body temperature gets high. I can explain what blood vessels do when my body temperature gets low. I can name a structure veins have that arteries do not. I can explain why veins have valves. I can describe arteries. I can describe arterioles. I can describe veins. I can describe venules. I can describe capillaries. I can explain the statement “The circulatory system is basically 2 loops.” Blood Vessels Dilate Constrict Artery Vein Valve Arteriole Venule Capillary Pulmonary These are elastic! They get bigger and smaller… Vessels getting bigger = dilating Vessels getting smaller = constricting Your blood vessels get bigger (vasodilation). They move closer to the epidermis and release heat. This cools you off! Your blood vessels get smaller (vasoconstriction). They move farther away from the epidermis and keep heat in. This warms you up! Veins Arteries Next page… what structure do veins have that arteries do not? Arteries - blood vessel that leads blood away from the heart Arterioles – arteries start branching into smaller vessels called arterioles Vein Blood vessel that leads blood towards the heart Venules – veins start branching into smaller vessels called venules arterioles Where arterioles turn in to venules Smallest blood vessels Only big enough for 1 erythrocyte to get through at a time Diffusion of oxygen and carbon dioxide occur here Your circulatory system is basically 2 loops: › Pulmonary Loop: This loop goes from your heart to your lungs and back to your heart again › Systemic Loop: The second loop goes from your heart to some place in the body (muscle, eyeball, big toe…) and back to your heart again 1. 2. 3. 4. 5. What do blood vessels do when a human is cold? What are blood vessels going to do to try to get rid of heat when a person is too hot? Which type of vessel takes blood from the heart to the finger? Which type of vessel takes blood from the lung to the heart? Where does diffusion of the oxygen and carbon dioxide happen in the blood vessel? http://www.cleanvideosearch.com/media/ action/yt/watch?videoId=HNuPWdfjDoc http://biology.about.com/od/anatomy/ss/ capillary.htm http://www.cleanvideosearch.com/media/ action/yt/watch?videoId=CjNKbL_-cwA http://www.gettyimages.ca/detail/illustratio n/the-blood-supply-of-the-head-and-neckroyalty-free-illustration/87376830