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A/P Week 10

QuestionAnswer
Mechanical devices that permit the flow of blood in one direction only are called ventricles. atria. valves. vessels. valves.
The brachiocephalic vein drains blood from the right posterior wall of the thorax. head, neck, and upper extremity. kidneys. lower trunk and extremity. head, neck, and upper extremity.
Blood flow from the heart through blood vessels to all parts of the body and back to the heart is referred to as _____ circulation. pulmonary systemic full cardiac systemic
A glycoprotein hormone that is secreted to increase oxygen concentration in the tissues is erythropoietin. hemoglobin. spectrin. proerythroblast. erythropoietin.
Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: hemoglobin. osteons. erythroblasts. hematopoietic stem cells. hematopoietic stem cells.
After blood leaves the lungs and returns to the heart, it enters the right atrium. left atrium. right ventricle. left ventricle. left atrium.
The normal cardiac impulse that initiates mechanical contraction of the heart arises in the AV node. AV bundle. Purkinje fibers. SA node. SA node.
The outermost layer of the larger blood vessels is the tunica media. intima. adventitia. intermedia. adventitia.
The internal iliac artery supplies blood to the pelvis. leg and foot. head and upper extremities. fingers. pelvis.
Which division of the autonomic nervous system sends fibers to the heart? sympathetic parasympathetic somatic both A and B both A and B
_____ is used to determine the volume percentage of red blood cells in whole blood. Spectrin Hematocrit Hematopoiesis Hemocytometer Hematocrit
In _____, blood moves from veins to other veins or arteries to other arteries without passing through an intervening capillary network. vascular anastomoses coronary arteries venous sinuses venous valves vascular anastomoses
Which types of arteries are also called conducting arteries and include the aorta? muscular arteries elastic arteries metarterioles resistance arteries elastic arteries
The term blood type refers to the type of blood cell antibody. antigen. transfusion reaction. antigen.
The molecule that makes up 95% of the dry weight of each red blood cell and is responsible for the red pigment is spectrin. erythropoietin. hemoglobin. erythroblast. hemoglobin.
Microscopic vessels that carry blood from small arteries to small veins are arterioles. venules. capillaries. sinusoids. capillaries.
All of the following are granulocytes except neutrophils. eosinophils. lymphocytes. basophils. lymphocytes.
Neutrophils are highly mobile and phagocytic. They migrate out of blood vessels and into tissue spaces. This process is called diapedesis. chemotaxis. erythroblastosis. hematopoiesis. diapedesis.
A graphic record of the heart’s electrical activity is a(n) ECG. EEG. CAT scan. MRI. ECG.
During fetal circulation, what opening in the septum, between the right and left atria, directs most of the blood so that it bypasses the fetal lungs? ductus venosus ductus arteriosus foramen ovale placenta foramen ovale
Atria are often called _____ because they receive blood from vessels called veins. pumping chambers venous chambers deoxygenated chambers receiving chambers receiving chambers
The heart has its own special covering, a loose-fitting inextensible sac called the pericardium. endocardium. myocardium. exocardium. pericardium.
The type of membranous tissue that lines the heart and blood vessels is the endocardium. endothelium. serous pericardium. fibrous pericardium. endothelium.
Platelets play an important role in fighting infection. carrying oxygen. blood clotting. carrying carbon dioxide. blood clotting.
Which of the following is not a formed element found in the blood? red blood cell white blood cell plasma platelet plasma
Renal veins drain blood from the eyes. hands. pelvic region. kidneys. kidneys.
A decrease in the amount of white blood cells is called leukocytosis. leukopenia. differential white blood cell count. hemostasis. leukopenia.
A hematocrit of 56% would be an indication of: leukocytosis. anemia. leukemia. polycythemia. polycythemia.
The mechanisms of which three hormones work together to regulate blood volume? aldosterone, ANH, and TSH aldosterone, TSH, and ADH aldosterone, ANH, and ADH aldosterone, ADH, and LH aldosterone, ANH, and ADH
The physiological mechanism that dissolves clots is known as hemostasis. fibrinolysis. erythroblastosis. diapedesis. fibrinolysis.
The term blood type refers to the type of blood cell antibody. antigen. transfusion reaction. antigen.
A decrease in the amount of white blood cells is called leukocytosis. leukopenia. differential white blood cell count. hemostasis. leukopenia.
Inhibition of sympathetic vasoconstrictor impulses is considered a major mechanism of vasoconstriction. vasodilation. vasopressure. vasomotor control. vasodilation.
The heart begins beating in the fetus at about what stage of development? Fourth month Second month After about 4 weeks After about 2 weeks After about 4 weeks
The localized pressure gradient needed to maintain blood flow in a tissue is called regional pressure. perfusion pressure. systolic pressure. diastolic pressure. perfusion pressure.
The vagus is said to act as a “brake” on the heart. This situation is called cardiac inhibition. coronary inhibition. vagal inhibition. autonomic inhibition. vagal inhibition.
A glycoprotein hormone that is secreted to increase oxygen concentration in the tissues is erythropoietin. hemoglobin. spectrin. proerythroblast. erythropoietin.
Blood viscosity stems mainly from the red blood cells but also partly from the _____ in blood. glucose molecules present lipid molecules present formed elements protein molecules present protein molecules present
The difference between systolic pressure and diastolic pressure is called Korotkoff sounds. minute volume. pulse pressure. pressure gradient. pulse pressure.
Neutrophils are highly mobile and phagocytic. They migrate out of blood vessels and into tissue spaces. This process is called diapedesis. chemotaxis. erythroblastosis. hematopoiesis. diapedesis.
_____ is used to determine the volume percentage of red blood cells in whole blood. Spectrin Hematocrit Hematopoiesis Hemocytometer Hematocrit
Factors that affect the strength of myocardial contraction are called inotropic factors. chronotropic factors. ejection factors. cardiac afterload factors inotropic factors.
_____, a natural constituent of blood, acts as an antithrombin and prevents clots from forming in vessels. Spectrin Erythropoietin Serum Heparin Heparin
All of the following are components critical to coagulation except prothrombin. thrombin. fibrinogen. fibrin. none of the above; all of these components are critical to coagulation. none of the above; all of these components are critical to coagulation.
Which of the following is(are) involved in determining a person’s total blood volume? Age Body type Sex All of the above All of the above
Cardiac output is determined by stroke volume and blood pressure. heart rate and blood pressure. stroke volume and heart rate. stroke volume and peripheral resistance. stroke volume and heart rate.
Blood pressure is measured with the aid of an apparatus known as a(n) stethoscope. sphygmomanometer. EKG. MRI. sphygmomanometer.
Blood volume per kilogram of body weight varies inversely with: skeletal volume. body fat. water weight. height. body fat.
In the extrinsic pathway of stage 1 of the clotting mechanism, chemicals released from damaged tissues trigger the cascade of events that ultimately result in the formation of calcium. vitamin K. prothrombin activator. fibrin. prothrombin activator.
Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: hemoglobin. osteons. erythroblasts. hematopoietic stem cells. hematopoietic stem cells.
The term used to describe the collection of mechanisms that influence the circulation of blood is: hematopoiesis. hemodynamics. hemostasis. hematocrit. hemodynamics.
Created by: kscalder
 

 



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