Blood flow velocity is slowest in which vessels: - aorta - large arteries - large veins - capillaries - all have the same blood flow velocities

4. Capillaries are by far the most common type of blood vessel in the body, and most capillaries are very porous they Auid. Blood is mostly Auid. The swelling caused by fluids leaking from the blood into tissues is known as edema. Predict where in the body you would see edema related to left-sided heart failureand where you would see related to right-sided heart failure. Be sure to explain your answers.

6. Put the following events of the conduction system in the proper order (#1-9). _1_ sinoatrial node atrioventricular node right and left bundle branches contraction of atria ventricular depolarization atrioventricular bundle Purkinje fibers 9 contraction of ventricles depolarization of atria

6. What is the relationship between each of the following and the arterial blood pressure? a. Vasodilation in arterioles: b. Vasoconstriction in arterioles: c. Total peripheral resistance: d. Cardiac output: e. Stroke volume: f. Cardiac rate:

Blood doping has benefits for performance, but it has some consequences on the heart, short term and long term. Learning that blood doping adds red blood cells to the blood, what variable in the blood does this change and how does that affect blood flow? viscosity; increase blood flow resistance; decrease blood flow viscosity; decrease blood flow O resistance; increase blood flow

During hemorrhage: Baroreceptors- decreases or increase Sympathetic – decreases or increase Parasympathetic – decreases or increase Venous vasoconstriction – decreases or increase Venous return – decreases or increase Atrial pressure –decreases or increase      7. EDV - decreases or increase

6. The lumen of a vein is larger than the lumen of an artery of the same size. True or False ?!

9. Exercise and elevation of the legs are to self-care options to treat varicose veins.   True False

4. Increased venous return results ina. increased stroke volume. c. decreased heart rate.b. increased cardiac output. d. Both a and b are correct?

3. During phase 1 of the cardiac contractile cell: electrochemical K+ efflux is offset by electrochemical Na+ influx O chemical gradient K+ influx is nearly offset by electrostatic K+ efflux O there is a net electrochemical K+ efflux O chemical gradient K+ efflux is nearly offset by electrostatic K+ influx