Blood module exam
What is the normal percentage of basophils? A)1% B)25% C)65% D)3%
1%
Which blood type is called the universal donor? A)O B)AB C)B D)A
O
Prostacyclin keeps platelet plugs formation in the immediate area of injury. True False
True
When blood has been centrifuged, what is located just below the straw colored layer in the test tube? white blood cells platelets leukocytes all of the above
all of the above
Which of the following are phases of hemostasis? vascular spasm platelet plug formation coagulation all of the above
all of the above
Which of the following makes up part of the smallest 2% of plasma? hormones gases nutrients all of the above
all of the above
Condition in which blood has abnormally low oxygen-carrying capacity. Polycythemia Embolism Anemia Leukemia
anemia
Contains dark blue staining granules that release histamine and heparin. Erythrocyte Eosinophil Monocyte Neutrophil Basophil
basophil
Nucleus has two lobes; contains granules of lysosomal enzymes; functions in attacking parasitic worms. Eosinophil Monocyte Neutrophil Basophil Erythrocyte
eosinophil
Transports CO2 and oxygen. Basophil Monocyte Erythrocyte Neutrophil Eosinophil
erythrocyte
Which of the following hormones if release by the kidneys and is a direct stimulus for erythropoiesis? A)erythropoietin B)thrombopoietin C)leukopoietin D) homopoietin
erythropoietin
Basophils increase in number when parasitic invasion occurs. True False
false
Diapedesis is the process by which red blood cells move into tissue spaces from the interior of blood capillaries. True False
false
Hemoglobin is made up of the protein heme and the red pigment globin. True False
false
Most RBCs are destroyed in is the liver. True False
false
The primary source of RBCs in the adult human being is the bone marrow in the shafts of the long bones. True False
false
Forms fibrin during hemostasis Fibrinogen Alpha and beta globulins Gamma globulins Albumin
fibrinogen
Which of the following might trigger erythropoiesis? A)moving to a lower altitude B)decreased tissue demand for oxygen C)an increased number of RBCs D)hypoxia
hypoxia
In which of the following ways is most of the carbon dioxide in the blood transported? A)it becomes part of the bicarbonate ion B)it dissolves in the plasma C)it attaches to the hemoglobin molecule D)all of the above are equal
it becomes part of the bicarbonate ion
Which of the following is true about blood plasma? It is the same as serum but without the clotting proteins. It contains about 20 dissolved components. The main protein component is hemoglobin. It is about 90% water.
it is about 90% water
What organ in the body regulates erythrocyte production? pancreas brain kidney live
kidney
Cancerous condition involving white blood cells. Polycythemia Anemia Leukemia Embolism
leukemia
Which of the following causes an increase in the production of RBC's? A. low blood oxygen levels B. high blood oxygen levels C. low carbon dioxide levels D. both A and C
low blood oxygen levels
Which of the following is an agranulocyte? neutrophil w lymphocyte basophil w all are agranulocytes
lymphocyte
Which of the following leukocytes is not a granulocyte? A)lymphocyte B)neutrophil C)eosinophil D)basophil
lymphocyte
Platelets are produced from a precursor cell called a ________. myelocyte monocyte megakaryocyte reticulocyte
magakaryocyte
Largest of the WBCs; crucial in defense against viruses; associated with chronic infections. Erythrocyte Eosinophil Monocyte Basophil Neutrophil
monocyte
Which of the following leukocytes enters the tissues as a macrophage? netrophil mast cell monocyte lymphocyte
monocyte
Which of the following is the most abundant type of leukocytes? A)neutrophils B)monocytes C)lymphocytes D)eosinophils
neutophils
Nucleus is multilobed; functions as a phagocyte; contains fine indistinct granules. Basophil Neutrophil Eosinophil Monocyte Erythrocyte
neutrophil
Which of the following best describes oxygen transport in blood? carbonic anhydrase dissolves oxygen in plasma oxygen attaches to the globin portion of the hemoglobin molecule oxygen is carried attached to the surface of the red blood cell oxygen attaches to the iron-containing portion of hemoglobin
oxygen attaches to the iron-containing portion of hemoglobin
In the adult, most blood cells are produced in the _______. A)lymphatic tissue B)spongy bone and epiphyses of long bones C)lacunae D)shafts of long bones
spongy bone and epiphyses of long bones
Platelets ________. have a life span of about 120 days stick to the damaged area of a blood vessel and help seal the break have multiple nuclei are the precursors of leukocytes
stick to the damaged are of a blood vessel nd help the break
Which of the following is characteristic of all leukocytes? They are the most numerous of the formed elements in blood. They are phagocytic. They have cytoplasmic granules. They are nucleated.
they are nucleated
During hemostasis, which of the following converts the soluble protein fibrinogen to fibrin fibers? A)fibrinolysin B)prostacylin C)throbin D)prothrombin activator
throbin
All lymphocytes are leukocytes, but not all leukocytes are lymphocytes. True False
true
Each heme contains an atom of iron and can transport one molecule of oxygen. True False
true
Granulocytes called neutrophils are phagocytic and are the most numerous of all white blood cell types. True False
true
Leukemia refers to cancerous conditions of white blood cells. True False
true
Leukopenia is an abnormally low number of leukocytes. True False
true
Positive chemotaxis is a feedback system that signals leukocyte migration into damaged areas. True False
true
What is the normal life span of erythrocytes? A)105-125 days B)110-130 days C)95-115 days D)100-120 days
100-120 days
Which of the following best represents the normal percentage of plasma in blood? 55% 45% 65% 75%
55%
What is the average normal pH range of blood? 4.65-4.75 7.35- 7.45 8.35-8.45 7.75-7.85
7.35-7.45
What percentage of plasma is made up of proteins? A)5% B)6% C)8% D)10%
8%