front 1 Gas and nutrient exchange occur in the: | back 1 capillaries. |
front 2 The left side of the heart is considered the systemic circuit pump. | back 2 True |
front 3 Aldosterone will ________. | back 3 promote an increase in blood pressure |
front 4 The layers of the heart wall from superficial to deep are: | back 4 epicardium, myocardium, and endocardium |
front 5 The velocity of blood flow is ________. | back 5 slowest in the capillaries because the total cross-sectional area is the greatest |
front 6 During the cardiac cycle, heart valves open and close because of: | back 6 differences in blood pressure on their two sides. |
front 7 In adults, red blood cell production occurs in__________. | back 7 red bone marrow |
front 8 Platelets ________. | back 8 stick to the damaged area of a blood vessel and help seal the break |
front 9 Arteriole blood pressure increases in response to all but which of the following? | back 9 falling blood volume |
front 10 Choose the compatible transfusion. | back 10 Donate type O blood to a recipient with type AB blood |
front 11 The heart's pacemaker is the: | back 11 sinoatrial node. |
front 12 If cardiac muscle is deprived of its normal blood supply, damage would primarily result from ________. | back 12 decreased delivery of oxygen |
front 13 A typical normal diastolic arterial blood pressure would be ____________________. | back 13 80 mm Hg. |
front 14 A person who lacks agglutinogens A and B would have blood type: | back 14 O |
front 15 Aging red blood cells are fragmented and trapped in the: | back 15 Spleen |
front 16 Overproduction of white blood cells is called: | back 16 leukocytosis. |
front 17 The terms biconcave and anucleated apply to: | back 17 red blood cells |
front 18 As red blood cells age ________. | back 18 membranes "wear out" and the cells become damaged |
front 19 Choose the statement that is true concerning hemoglobin. | back 19 It is composed of four protein chains and four heme groups. |
front 20 Modified capillaries that are lined with phagocytes are called ________. | back 20 sinusoids |
front 21 Compared to skeletal muscle, cardiac muscle ________. | back 21 has gap junctions that allow it to act as a functional syncytium |
front 22 What is the average normal pH range of blood? | back 22 7.35-7.45 |
front 23 Blood pressure is lowest in which of the following vessels? | back 23 Venules |
front 24 The fact that the left ventricle of the heart is thicker than the right ventricle reveals that it ________. | back 24 pumps blood against a greater resistance |
front 25 Blood from the lower limbs is returned to the heart via the: | back 25 inferior vena cava. |
front 26 Blood within the pulmonary veins returns to the ________. | back 26 left atrium |
front 27 The arteries that directly feed into the capillary beds are called ________. | back 27 arterioles |
front 28 Select the correct statement about factors that influence blood pressure. | back 28 Excess red cell production would cause a blood pressure increase. |
front 29 Which of the following is characteristic of all leukocytes? | back 29 They are nucleated. |
front 30 All of the following can be expected with polycythemia except ________. | back 30 low blood viscosity |
front 31 Select the correct statement about blood flow. | back 31 Blood flow through the entire vascular system is equivalent to cardiac output. |
front 32 The bicuspid valve directs blood flow in which direction? | back 32 From the left atrium to the left ventricle |
front 33 The pulmonary circuit is not active in the developing fetus | back 33 True |
front 34 A patient with essential hypertension might have pressures of 200/120 mm Hg. This hypertensive state could result in all of the following changes except ________. | back 34 decreased size of the heart muscle |
front 35 Blood flows directly from _____ into capillary beds. | back 35 arterioles |
front 36 Erythropoiesis is best defined as: | back 36 red blood cell production. |
front 37 The role of the coronary arteries is to: | back 37 supply blood to the heart tissue. |
front 38 The term for pain associated with deficient blood delivery to the heart that may be caused by the transient spasm of coronary arteries is ________. | back 38 angina pectoris |
front 39 Which of the following factors does not influence heart rate? | back 39 Skin Color |
front 40 An abnormal excess of erythrocytes is called__________. | back 40 polycythemia |
front 41 Blood from the brain is returned to the heart via the: | back 41 superior vena cava. |
front 42 During contraction of heart muscle cells ________. | back 42 some calcium enters the cell from the extracellular space and triggers the release of larger amounts of calcium from intracellular stores |
front 43 Norepinephrine acts on the heart by ________. | back 43 causing threshold to be reached more quickly |
front 44 Fred's blood was determined to be AB positive. What does this mean? | back 44 There are no antibodies to A, to B, or to Rh antigens in the plasma. |
front 45 Erythropoietin is made primarily by the: | back 45 kidneys. |
front 46 The special type of hemoglobin present in fetal red blood cells is ________. | back 46 hemoglobin F |
front 47 The form of circulatory shock known as hypovolemic shock is ________. | back 47 shock that results from large-scale loss of blood volume, or after severe vomiting or diarrhea |
front 48 Small muscle masses attached to the chordae tendineae are the ________. | back 48 papillary muscles |
front 49 Which blood type is called the universal donor? | back 49 O |
front 50 Select the correct statement about the structure of the heart wall. | back 50 The myocardium is the layer of the heart that actually contracts. |
front 51 Bilirubin is cleared from the body by: | back 51 the liver. |
front 52 Peripheral resistance ________. | back 52 increases as blood viscosity increases |
front 53 Choose the correct sequence of current flow through the heart wall. | back 53 SA node, AV node, AV bundle of His, right and left bundle branches, Purkinje fibers |
front 54 Identify the correct sequence of blood flow through the chambers of the heart. | back 54 Right atrium, right ventricle, lungs, left atrium, left ventricle |
front 55 The atrioventricular valves and semilunar valves open and close in response to ____________________. | back 55 the difference in blood pressure on their upper and lower sides. |
front 56 At rest, on average, how many times per minute does the heart beat? | back 56 75 |
front 57 Aortic pressure is highest during ____________________. | back 57 ventricular systole. |
front 58 Blood ____________________. | back 58 flow through the heart moves in one direction. |
front 59 Cardiac output is: | back 59 the amount of blood pumped out of each ventricle in one minute. |
front 60 The first heart sound (the 'lub' of 'lub-dup') is caused by: | back 60 closure of the atrioventricular valves. |
front 61 The __________ are attached to the AV valve flaps. | back 61 chordae tendineae. |
front 62 The ________ valve is located between the right atrium and the right ventricle. | back 62 tricuspid |
front 63 Cardiac systole is the period of the cardiac cycle when ____________________. | back 63 the atria or ventricles are contracting. |
front 64 Select the correct statement about factors that influence blood pressure. | back 64 Excess red cell production would cause a blood pressure increase. |