Review Questions for Exam 3
Blood:
What are the functions of the blood?
What is the function of the lymphatic system?
The average (150 pound male) has approximately ________ liters of blood.
What are the components of blood?
What are the primary components of plasma?
What is the primary functions of albumins?
Gammaglobulins are also ______________________________.
What are the unique features of red blood cells when compared with other cells.
What is the general structure of hemoglobin? What compounds does it transport?
How (in what forms) is carbon dioxide carried in the blood?
Why is carbon monoxide an extremely toxic compound?
What affects the production of red blood cells?
The average red blood cell lives for ________ days.
What is anemia? What are three general types of anemia?
What is sickle cell anemia? Why to red blood cells sickle? In which group of people is it most commonly found?
What is bilirubin? How is it related to jaundice?
What are the two main classes of leukocytes?
Which WBCs are phagocytes? Which produce antibodies?
The granules of eosinophils normally stain ________________ using conventional (Wright's) stain.
What is the ABO system?
Which blood type is the universal donor? universal receipient? Why?
What is the Rh factor? How is it related to the hemolytic disease of the newborn (erythroblastosis fetalis)? What is RhoGam?
What is hemostasis?
What are the roles of platelets in blood clotting?
How does aspirin inhibit blood clotting?
What are the general features of the extrinsic, intrinsic, and common pathways of blood clotting?
Why is the extrinsic pathway faster acting than the intrinsic pathway?
What keeps blood clotting from getting out of control?
Calcium binding compounds (EDTA, citrate and oxylate) act as anti-coagulants. How?
What is the role of Vitamin K in blood clotting?
What are the actions of t-PA, coumadin (Warfarin) and dicumarol?
What is hemophilia? leukemia?
Heart
What is the function of the pericardium?
What are the three layers of the heart wall? What is the function of each layer?
Know the chambers, valves, and major vessels associated with the heart.
What are the chordae tendineae and what do they do?
What are the three "circulations" that make up the cardiovascular system?
What, specifically, produces the heart sounds "lubb" and "dupp?"
What is the cardiac cycle?
If a person's cardiac cycle lasts for 600 msec, what is their heartrate?
What are the two main phases of ventricular systole?
What is the relationship between atrial diastole and ventriclar systole?
What is occurring in the heart during isovolumetric ventricular contraction?
How is a cardiac action potential different than a neuronal action potential?
Be able to diagram the impulse conducting system of the heart. (SA node --> etc)
What do the different waves of the electrocardiogram represent?
What does a prolonged PR interval indicate?
What are the key differences between a cardiac action potential and a neuronal action potential?
What is the normal pacemaker of the heart? What makes What is an ectopic pacemaker?
What is cardiac output? What affects cardiac output?
What is "ejection fraction"?
What is end systolic volume? end diastolic volume?
What determines or affects stroke volume?
How is heart rate controlled? What structures and chemicals are involved?
What is the Frank-Starling law of the heart?
What is "cardiac reserve"?
What is a heart murmur? mitral valve prolapse? fibrillation? myocardial infarction? congestive heart failure? septal defect? angina pectoris? bradycardia? tachycardia? athletic bradycardia.
Blood Vessels
What are the 5 vessel types? How do they differ in structure, function, pressure?
In what vessels is oxygenated blood found? ...deoxygenated blood found?
At any one time, most of the body's blood is found in __________ (vessels).
What is the difference between an elastic artery and a muscular artery?
What determines whether blood flows into a particular capillary bed?
What is the significance of valves in the veins? What is a varicose vein?
What is the significance of the different types of capillaries found in the body? (or, why don't we have just one type of capillary?)
What is a portal system?
Describe the pulmonary circulation; systemic circulation.
Peripheral resistance is due to which factors?
What happens to blood flow if resistance is increased? if blood pressure is increased?
If the radius of a vessel increases two-fold, what happens to resistance?
If one is loosing blood due to a severe wound, what happens to blood pressure? How does the body compensate for this change in pressure?
What are and where are the cardiovascular centers?
BP = C.O. X TPR. What does this equation represent?
How is blood pressure measured using a sphygmomanometer?
What is "normal blood pressure?"
What is mean arterial pressure? How is it determined?
What determines the net filtration force in capillaries? Is it balanced?
If there is a net movement of fluid out of the capillaries, what prevents edema?
Why is edema associated with congestive heart failure?
What is the skeletal muscle pump? respiratory pump?
What is hypertension? hypotension?
What is meant by the "autoregulation of blood flow?"
What mechanisms permit blood to be shunted to the skeletal muscles during exercise?
What is the difference between arteriosclerosis and atherosclerosis?
What is plaque? What is an aneurysm?
What circulatory shock? What is a stroke (CVA)?