Anatomy Blood Pretest 4 Answers Reonisto
Which of these descriptions best matches the term eosinophils? 45) ______ A) adhere to collagen beneath endothelium B) often elevated in allergic individuals C) helper cells are one type D) produce antibodies in response to antigens E) kill bacteria using hydrogen peroxide
B
Which of these is not one of the formed elements of blood? 21) ______ A) platelets B) antibodies C) RBCs D) lymphocytes E) basophils
B
Which organ secretes most of the plasma proteins? 13) ______ A) pancreas B) liver C) heart D) kidney E) brain
B
) All of the following are true of neutrophils, except that they are 24) ______ A) phagocytic. B) granular leukocytes. C) active in fighting bacterial infections. D) important in coagulation. E) also known as polymorphonuclear leukocytes.
D
) Which are the most numerous of the leukocytes? 65) ______ A) Lymphocytes B) Monocytes C) Basophils D) Neutrophils E) Eosinophils
D
) White blood cells that release histamine at the site of an injury are 26) ______ A) monocytes. B) neutrophils. C) lymphocytes. D) basophils. E) eosinophils.
D
61) Identify the letter that indicates the formed element of the blood that develops into phagocytic cells called macrophages.
D
Blood protein that contributes osmotic pressure, keeping water from leaking out of the vessels. 51) ______ A) hematocrit B) buffy coat C) serum D) albumin E) myeloid
D
Identify the cell labeled "2." 8) _______ A) basophil B) monocyte C) eosinophil D) neutrophil E) lymphocyte
D
Identify the letter that indicates the fraction of leukocytes that represents lymphocytes.
D
84) The percentage of volume of red blood cells is called the ________. 84) _____________
84) hematocrit
) In the centrifuged sample of blood illustrated, which number indicates the layer containing water, plasma proteins, nutrients, and waste products? 90) ______ A) 1 B) 2 C) 3 D) None of the numbers indicate that component of blood
A
) Megakaryocytes 39) ______ A) give rise to platelets. B) are small compared to erythrocytes. C) are phagocytic. D) circulate freely in the blood.
A
33) Identify the letter that indicates the fraction of leukocytes that represents neutrophils. 33) ______
A
4) Identify the cell labeled "5." 4) _______ A) monocyte B) erythrocyte C) lymphocyte D) basophil E) eosinophil
A
63) When trying to diagnose an infection that alters the percentages of leukocyte types found in the blood, it is useful for clinicians to perform a A) white blood cell differential count. B) total cell count for red and white blood cells. C) red blood cell differential count. D) blood typing.
A
7) Identify the cell labeled "3." 7) _______ A) eosinophil B) lymphocyte C) basophil D) monocyte E) erythrocyte
A
A plasma protein essential for blood coagulation is 11) ______ A) fibrinogen. B) albumin alpha. C) immunoglobulin A. D) metalloprotein D. E) lipoprotein C.
A
Fraction of blood comprised by erythrocytes. 52) ______ A) hematocrit B) buffy coat C) serum D) albumin E) myeloid
A
Identify the letter that indicates the formed element of the blood that is packed with molecules of hemoglobin. 58)
A
In the centrifuged sample of blood illustrated, number 2 indicates 89) ______ A) platelets. B) erythrocytes. C) plasma. D) leukocytes. E) leukocytes and platelets
A
More than 95 percent of the protein in a red blood cell is 17) ______ A) hemoglobin. B) immunoglobulin. C) albumin. D) fibrinogen. E) porphyrin
A
The combination of plasma and formed elements is called 3) _______ A) whole blood. B) packed blood. C) lymph. D) serum. E) extracellular fluid.
A
The least abundant white blood cell type is the 40) ______ A) basophil. B) monocyte. C) eosinophil. D) lymphocyte.
A
The most numerous WBCs in a differential count of a healthy individual are 30) ______ A) neutrophils. B) leukocytes. C) basophils. D) lymphocytes. E) monocytes.
A
Which of the following groups of cells are most structurally related? 38) ______ A) eosinophils, basophils, and neutrophils B) lymphocytes, erythrocytes, and basophils C) basophils, lymphocytes, and monocytes D) monocytes, platelets, and macrophages
A
Which type of leukocyte releases histamine? 67) ______ A) Basophil B) Monocyte C) Lymphocyte D) Neutrophil E) Eosinophil
A
White blood cells that are increased in allergic individuals are the 28) ______ A) eosinophils. B) monocytes. C) neutrophils. D) basophils. E) lymphocytes.
A
) All the circulating red blood cells originate in the 14) ______ A) heart. B) red bone marrow. C) lymph tissue. D) thymus. E) spleen
B
) During a bacterial infection you would expect to see increased numbers of 55) ______ A) eosinophils. B) neutrophils. C) reticulocytes. D) basophils. E) thrombocytes.
B
) Platelets are 57) ______ A) tiny cells with a polynucleus. B) cytoplasmic fragments of large cells. C) red cells that lack a nucleus. D) blue cells that have a nucleus. E) large cells with a prominent, concave nucleus.
B
) The "buffy coat" in a centrifuged blood sample is composed of 78) ______ A) erythrocytes. B) platelets and leukocytes. C) leukocytes. D) platelets. E) erythrocytes and leukocytes.
B
34) Identify the letter that indicates the fraction of leukocytes that represents eosinophils. 34) ______
B
60) Identify the letter that indicates the most abundant class of leukocyte. 60) ______
B
An eosinophil can be distinguished from a basophil because the eosinophil 36) ______ A) contains cytoplasmic granules. B) has pink (versus dark purple) granules. C) has a lobed (versus nonlobed) nucleus. D) is smaller.
B
In the centrifuged sample of blood illustrated, number 2 indicates 89) ______ A) platelets. B) erythrocytes. C) plasma. D) leukocytes. E) leukocytes and platelets
B
Leukocytes are the ________ of the formed elements, and leukocytes have ________. 73) ______ A) smallest, prominent nuclei B) largest, prominent nuclei C) smallest, no nucleus D) largest, no nucleus
B
Platelets are pinched off from giant multinucleated cells in the bone marrow called 56) ______ A) myeloblasts. B) megakaryocytes. C) normoblasts. D) lymphoblasts. E) erythroblasts.
B
The clinical definition of the hematocrit refers to the percentage of 75) ______ A) leukocytes in the blood. B) erythrocytes in the blood. C) platelets in the blood. D) plasma in the blood. E) all formed elements in the blood.
B
The most abundant proteins in blood plasma are 9) _______ A) fibrinogens. B) albumins. C) lipoproteins. D) globulins. E) transport proteins.
B
The most numerous white blood cells in peripheral circulation are the 25) ______ A) basophils. B) neutrophils. C) monocytes. D) lymphocytes. E) eosinophils.
B
When blood is centrifuged and its components separate, the bottom of the tube holds the 77) ______ A) plasma. B) erythrocytes. C) platelets. D) electrolytes and waste products. E) monocytes. F) buffy coat.
B
Leukocyte primarily responsible for destroying bacteria. 50) ______ A) erythrocyte B) lymphocyte C) eosinophil D) neutrophil E) basophil
D
) The function of hemoglobin is to 18) ______ A) carry carbon dioxide. B) carry oxygen. C) aid in the process of blood clotting. D) A, B, and C E) A and B only
E
32) Identify the letter that indicates the fraction that of leukocytes that represents monocytes. 32) ______
E
5) Identify the cell labeled "6." 5) _______ A) eosinophil B) erythrocyte C) basophil D) monocyte E) lymphocyte
E
59) Identify the letter that indicates formed elements of the blood that are important in blood clotting. 59) ______
E
6) Identify the cell labeled "7." 6) _______ A) neutrophil B) lymphocyte C) basophil D) monocyte E) platelet
E
A typical adult hematocrit is 20) ______ A) 75. B) 85. C) 65. D) 25. E) 45.
E
Cell fragments, also called thrombocytes, involved in clotting. 54) ______ A) albumin B) fibrinogen C) globulins D) basophils E) platelets
E
Formed elements make up about what percentage of blood? 2) _______ A) 60 percent B) 38 percent C) 20 percent D) 55 percent E) 45 percent
E
In adults, the only site of red blood cell production, and the primary site of white blood cell formation, is the 22) ______ A) thymus. B) liver. C) yellow bone marrow. D) spleen. E) red bone marrow.
E
The function of red blood cells is to 16) ______ A) carry carbon dioxide from the cells to the lungs. B) carry oxygen from the lungs to the body's cells. C) defend the body against infectious organisms. D) carry nutrients from the digestive system to the body's cells. E) both A and B
E
The percent fraction of formed elements relative to whole blood is the 19) ______ A) specific gravity. B) packed volume. C) differential cell count. D) viscosity. E) hematocrit.
E
Which of the following is a function of the blood? A) transport of body heat B) defense against toxins and pathogens C) transport of nutrients and wastes D) transport of gases E) all of the above
E
83) When viewing a centrifuged blood sample, the erythrocytes will be on the top. 83) ______
False
85) Platelets are continually produced in the red bone marrow by cells called ________. 85) _____________
megakaryocytes
In the centrifuged sample of blood illustrated, what blood components are contained in the layer labeled number 3? 91) ______ A) Plasma and water B) Erythrocytes C) Leukocytes and platelets D) Plasma, water, waste materials, and electrolytes E) Leukocytes and waste materials
neutrophil
88) When clotting proteins are removed from plasma, the remaining fluid is called ________. 88)
serum
) An average female has approximately ________ of blood. 43) ______ A) 8 liters B) 1 liter C) 4 liters D) 0.5 liter
C
) Hematocrit measures the percentage of blood volume that consists of 48) ______ A) plasma. B) platelets. C) erythrocytes. D) neutrophils.
C
) The reason it is more appropriate to call an erythrocyte a "formed element" rather than a "cell" is that erythrocytes 71) ______ A) can form a rouleau when moving through a capillary. B) are actually dead. C) lack a nucleus and organelles. D) are not red. E) have lots of inclusion molecules.
C
) When centrifuged, blood separates into the following sequence of layers, from lightest to heaviest: 42) ______ A) hematocrit, plasma, buffy coat. B) buffy coat, plasma, hematocrit. C) plasma, buffy coat, hematocrit. D) buffy coat, hematocrit, plasma.
C
) Which are the least numerous of the leukocytes? 64) ______ A) Monocytes B) Neutrophils C) Basophils D) Eosinophils E) Lymphocytes
C
) ________ are large phagocytic white cells that spend most of their time outside the blood as fixed and free phagocytic cells. 27) ______ A) Basophils B) Neutrophils C) Monocytes D) Eosinophils E) Lymphocytes
C
35) Identify the letter that indicates the fraction of leukocytes that represents basophils. 35) ______
C
62) Identify the letter that indicates the formed element of the blood that produces antibodies. 62) ______
C
Each heme ring in hemoglobin encloses an atom of 23) ______ A) magnesium. B) copper. C) iron. D) sodium. E) calcium.
C
Plasma minus clotting factors. 53) ______ A) hematocrit B) buffy coat C) serum D) albumin E) myeloid
C
Seen in abundance during parasitic infection.49) ______ A) erythrocyte B) lymphocyte C) eosinophil D) neutrophil E) basophil
C
The most abundant component of plasma isA) ions. B) gases. C) water. D) proteins. E) nutrients.
C
The most numerous of the formed elements are the 74) ______ A) albumins. B) basophils. C) erythrocytes. D) platelets. E) neutrophils.
C
The smallest and most abundant plasma proteins are the 72) ______ A) fibrinogens. B) prothrombins. C) albumins. D) globulins. E) endocrine hormones.
C
The type of leukocyte that is very active during a bacterial infection is a(n) 66) ______ A) monocyte. B) basophil. C) neutrophil. D) eosinophil. E) lymphocyte.
C
Which of the following is true of eosinophils? 46) ______ A) allergic patients have many B) have bilobed nucleus C) constitute about 2 to 4 percent of WBCs D) granules stain with acid dyes E) all of the above
C
Leukocytes, ordered from most to least abundant, are the 41) ______ A) neutrophils, monocytes, eosinophils, basophils, and lymphocytes. B) basophils, eosinophils, lymphocytes, monocytes, and neutrophils. C) basophils, eosinophils, monocytes, lymphocytes, and neutrophils. D) neutrophils, lymphocytes, monocytes, eosinophils, and basophils.
D
Plasma makes up about ________ percent of a centrifuged sample of whole blood. 76) ______ A) 25 B) 35 C) 45 D) 55 E) 75
D
Plasma proteins essential in body defense are the 10) ______ A) fibrinogens. B) albumins. C) lipoproteins. D) immunoglobulins. E) metalloproteins.
D
The average lifespan of a red blood cell is 15) ______ A) about 1 year. B) 1 month. C) many years. D) 4 months. E) 24 hours.
D
The formed element that is flattened, circular, lacks a nucleus, lacks mitochondria or ribosomes, and is red because of the presence of hemoglobin is 37) ______ A) a basophil. B) a lymphocyte. C) an eosinophil. D) an erythrocyte.
D
The life span of an erythrocyte is about ________ days. 70) ______ A) 10 B) 30 C) 60 D) 120 E) 360
D
The most abundant white blood cell type is the 47) ______ A) eosinophil. B) lymphocyte. C) monocyte. D) neutrophil.
D
The most abundant white blood cells are 29) ______ A) plasma cells. B) ABCs. C) monocytes. D) neutrophils. E) NBCs.
D
Typically, an adult's body contains ________ of blood. 79) ______ A) 1 liter B) 15 liters C) 10 liters D) 5 liters
D
What type of white blood cell increases dramatically during parasitic infections or allergic reactions? 44) ______ A) basophil B) neutrophil C) monocyte D) eosinophil
D
Which are characteristic of leukocytes? a: Smaller than erythrocytes b: Have a nucleus c: Have no hemoglobin d: More numerous than erythrocytes e: Depending on type, may or may not contain granules 69) ______ A) b, c, d, e B) a, b, c, d, e C) a, b, e D) b, c, e E) a, b, c, d
D
Which leukocytes are granulocytes? a: Neutrophils b: Eosinophils c: Lymphocytes d: Monocytes e: Basophils f: Erythrocytes68) ______ A) a, b, e, f B) b, d, e C) a, b, c D) a, b, e E) c, d
D
87) ________ are the most numerous type of leukocyte in the blood. 87) _____________
Neutrophils
) Hemoglobin can bind and transport four molecules of oxygen.
True
81) Blood aids in the regulation of body temperature. 81) ______
True
82) Platelets are formed elements. 82) ______
True
86) The test that measures the amount of each type of leukocyte in the blood is a(n) ________ count. 86)
differential
