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%