Review Chapter 19

Chapter 19 Review Questions 1. D 2. B 3. D 4. C 5. E 6. D 7. C 8. B 9. B 10. A 11. B 12. C 13. b 14. B 15. D 16. 1. G, 2. C, 3. F, I, 4. H, 5. D 17. Their location and the scantness of protects, allow for exchange of materials between the beginning and interstitial fluid. 18. Elastic arteries Location- near the bone marrow Histology elastin and smooth brawniness cells working(a) adaptations they live on as simple elastic tubes potent arteries Location deliver telephone circuit to specific remains organs Histology smooth muscle and fibrous Functional adaptation alive(p) in vasoconstrictionArterioles Location leading to the capillary tube beds Histology thinner but also largely smooth muscle and fibrous Functional adaptation de nameine the spot to minute run away into the capillary beds. 19. roue give ear =the difference in rootage function divided by resistance 20. Blood Pressure is the force per unit world exerted on a vessel wall by the contained blood expresse d in mmHg. Systolic is pressure at con portionion, and diastolic is pressure at rest. B) 110-140, over70-80. Short term control mediated by the flyaway system and blood borne hemicals,counteracting twinkling to moment fluctuations in bp by altering peripheral device resistance. Involves baroreceptors and to a lesser degree chemoreceptors. 21. It is winged in the aorta and large arteries, where the chase sectioned argona is the highest and slower in the capillaries where the cross sectional area is least. 22. The blood flow to the skin for the purpose of nutrients is served by auto rule in response to the need for group O. The flow for temperature regulation requires neural intervention, and are controlled by temperature receptors from higher(prenominal) CNS centers. 23.When experiencing the Fight or line of achievement reflex the nervous system and blood borne chemicals counteract moment to moment fluctuations in B/P and CO. The neural controls broadcast blood to the organs needing it like you musculoskeletal system during running, and chemoreceptors react to increased carbon dioxide or decreased o2 aims are present, flight. 24. create from raw stuff perfusion, blood flow by means of body interweaves is involved in the delivery of oxygen and nutrients to and the removal of wastes from the tissue cells, as wellhead as gas exchange in the lungs absorption of nutrients in the digestive tract and urine formation in the kidneys.The target of blood flow to the tissues is al approximately barely right to provide proper function. 1. lipid soluble molecules such as respiratory gasses diffuse through the lipid bilayer of the endothelial cell plasma membranes. Small wet soluble solutes such as amino group acids and sugars pass through fluid alter intercellular capillary clefts or fenestrations. just about larger molecules such as proteins are actively transported in pinocytitic vesicles or caveolae. 25. hepatic inlet vein, Superior mesenteric vein, lienal vein, Inferior mesenteric vein.In most circulation, the blood goes from the content to the aorta to the arteries, to the organ or tissue, to the veins and hindquarters to the heart. In a opening circulation, the blood goes from the heart to the aorta to the arteries, to the organ or tissue, to a vein, then to another tissue or organ BEFORE it goes jeopardize to the heart. An example of this is the blood that goes through the forward mesenteric artery to the small intestine, goes through the mesenteric vein to the hepatic portal vein, and to the liver, before it returns to the heart.This is because the blood coming from the intestines has a lot of sugar that it absorbed. The body tries to support the level of sugar in the blood the same at all times. So, the blood goes to the liver, where it stores about of the sugar, before it goes back to the heart and through the rest of the circulation. Then, in the optic of the night, when you havent eaten anything in a while (and the level of sugar in your blood is low), some of that sugar that was stored in the liver is released back to the blood.