BIOS 255 EXAM 2 Questions and Answers

BIOS 255 EXAM 2 Questions and Answers What are the 3 different layers of blood vessels? tunica intima, tunica media, tunica externa What are the three different types of arteries? elastic arteries, muscular arteries, arterioles What kind of blood do arteries carry? oxygenated blood Where do arteries carry blood? away from the heart What are the three different types of capillaries? continuous, fenestrated, and sinusoidal What cells are continuous capillaries made up of and where are they found in the body? endothelial cells, found in system capillaries Where are fenestrated capillaries found in the body? found in the kidney Where are the sinusoidal capillaries found in the body? found in the liver What are the 3 different types of veins? venules, medium-sized veins, large veins What kind of blood do veins carry? deoxygenated blood Where do the veins carry blood? towards the heart Mean Arterial Pressure Equation diastolic pressure-systolic pressure/3 + diastolic pressure What are the three factors that can determine systemic vascular resistance? blood vessel diameter, blood vessel length, blood viscosity What is the capillary net filtration pressure equation? NFP= (BHP+IFOP)-(BCOP+IFHP) What are the two factors that promote filtration? BHP and IFOP What are the two factors that oppose filtration? BCOP and IFHP What does a net positive filtration number mean? filtration is occurring What does a negative net filtration number mean? reabsorption is occurring What do veins act as? blood reservoirs What are the primary organs of the lymphatic system? bone marrow and thymus How does lymph travel through the body? capillaries - vessels - trunks - ducts Where does the thoracic trunk drain to? All of the lower extremities and the left side of the upper body