In a centrifuged sample of blood, what makes up the buffy coat? |
C. white blood cells and platelets |
Which of the following is NOT a function of blood? |
C. hormone production |
Which plasma constituent is the main contributor to osmotic pressure? |
A. albumin |
Which of the following does NOT stimulate erythrocyte production? |
B. hyperventilating |
Which of the following is correctly matched? |
B. pernicious anemia: results from a vitamin B12 deficiency |
Which leukocyte functions in phagocytizing bacteria? |
B. neutrophil |
Which of the following represents a difference between extrinsic and intrinsic blood clotting pathways? |
C. One is faster than the other. |
Which of the following scenarios could result in HDN (hemolytic disease of the newborn)? |
B. B- female pregnant with an AB+ baby |
What is an embolus? |
D. a blood clot that has broken loose and is floating freely in the bloodstream |
Choose the compatible transfusion. |
C. Donate type O blood to a recipient with type AB blood. |
Which ABO blood type is considered to be the universal donor? |
B. O |
Athletes who choose to use industry-produced EPO as a performance-enhancing drug to increase the effects of their naturally-produced EPO, will experience ______. |
A. decreased production of EPO by their kidneys |
In a cancer patient undergoing chemotherapy, the decision to utilize a CSF capable of specifically stimulating the production of only the granular leukocytes would require that the CSF acts exclusively on ______. |
C. myeloblasts |
During erythroblastosis fetalis, a Rh- mother’s anti-Rh antibodies that have crossed the placenta will cause agglutination of the fetus’s Rh+ RBCs. However, the reverse problem never happens when a Rh+ mother is pregnant with a Rh- fetus, that is, antibodies produced by the fetus cannot cause agglutination of the mother’s Rh+ RBCs. This is true because ______. |
C. antibodies that can cause this agglutination are not produced by a fetus |
What is the average normal pH range of blood? |
C. 7.35-7.45 |
Which of the following is not a distribution function of blood? |
D. transport of salts to maintain blood volume |
Which of the following is a protective function of blood? A. prevention of blood loss |
A. prevention of blood loss |
Which of the following statements does not describe blood? A. Blood carries body cells to injured areas for repair |
A. Blood carries body cells to injured areas for repair |
The __________ is the fluid portion of the blood. A. buffy coat |
D. plasma |
The majority of whole blood is __________. A. erythrocytes |
D. plasma |
What is hematocrit a measure of? A. Hematocrit is the percentage of leukocytes and platelets in a whole blood sample. |
B. Hematocrit is the percentage of erythrocytes in a whole blood sample. |
What does dark red blood indicate? A. oxygen-rich blood |
D. oxygen-poor blood |
Which of the following is true about blood plasma? A. It contains about 20 dissolved components. |
B. It is about 90% water. |
The plasma protein that is the major contributor to osmotic pressure is ________. A. albumin |
A. albumin |
The main protein in blood plasma is __________. A. hemoglobin |
D. albumin |
[T/F] The primary source of RBCs in the adult human being is the bone marrow in the shafts of the long bones. |
FALSE |
[T/F] Hemorrhagic anemias result from blood loss. |
TRUE |
[T/F] White blood cells are produced through the action of colony-stimulating factors. |
TRUE |
[T/F] Hemoglobin is made up of the protein heme and the red pigment globin. |
FALSE |
[T/F] Each hemoglobin molecule can transport two molecules of oxygen. |
FALSE |
[T/F] Diapedesis is the process by which red blood cells move into tissue spaces from the interior of blood capillaries. |
FALSE |
[T/F] Positive chemotaxis is a feedback system that signals leukocyte migration into damaged areas. |
TRUE |
[T/F] Basophils increase in number when parasitic invasion occurs. |
FALSE |
[T/F] Leukopenia is an abnormally low number of leukocytes. |
TRUE |
[T/F] Leukocytes move through the circulatory system by amoeboid motion. |
FALSE |
[T/F] Granulocytes called neutrophils are phagocytic and are the most numerous of all white blood cell types. |
TRUE |
[T/F] All lymphocytes are leukocytes, but not all leukocytes are lymphocytes. |
TRUE |
[T/F] Myelocytic leukemia involves a cancerous condition of lymphocytes. |
FALSE |
Which of the following might trigger erythropoiesis? A. hypoxia of EPO-producing cells |
A. hypoxia of EPO-producing cells |
James has a hemoglobin measurement of 16 g/100 ml blood. This is ________. A. within the normal range |
A. within the normal range |
All of the following can be expected with polycythemia except ________. A. high hematocrit |
B. low blood viscosity |
No visible cytoplasmic granules are present in ________. A. monocytes |
A. monocytes |
Which of the following is characteristic of all leukocytes? A. They are phagocytic. |
C. They are nucleated. |
Platelets ________. A. have a life span of about 120 days |
B. stick to the damaged area of a blood vessel and help seal the break |
Complications of aplastic anemia generally do not include ________. A. increase of leukocytes as a result of erythrocyte loss |
A. increase of leukocytes as a result of erythrocyte loss |
What organ in the body regulates erythrocyte production? A. pancreas |
C. kidney |
[T/F] Leukemia refers to cancerous conditions involving white blood cells. |
TRUE |
[T/F] The normal RBC "graveyard" is the liver. |
FALSE |
[T/F] Myeloid stem cells give rise to all leukocytes. |
FALSE |
Which of the following is not a functional characteristic of WBCs? A. ameboid motion |
C. granulosis |
Which of the choices below is the parent cell for all formed elements of blood? A. normoblast |
D. hemocytoblast |
Blood reticulocyte counts provide information regarding ________. A. clotting ability of the blood |
C. rate of erythrocyte formation |
Select the incorrect statement regarding blood cell formation. A. Lymphocytes are formed from lymphoblasts. |
C. Platelets are formed from myeloblasts. |
Which of the following is not a structural characteristic that contributes to erythrocyte gas transport functions? A. hemoglobin containing-sack |
D. mitotically active |
A lack of intrinsic factor, leading to a deficiency of vitamin B12 and causing an appearance of large pale cells called macrocytes, is characteristic of ________. A. sickle-cell anemia |
D. pernicious anemia |
Which of the following would not be a possible cause of sickling of red blood cells in someone with sickle-cell anemia? A. travel at high altitude |
B. sleeping in a well-ventilated room |
Which of the formed elements contains hemoglobin and transports respiratory gases? A. agranular leukocytes |
D. erythrocytes |
Which of the following is NOT a functional characteristic of leukocytes? A. positive chemotaxis |
B. leukocytosis |
Which of the following is NOT a formed element of the blood? A. antibodies |
A. antibodies |
Choose the statement that is true concerning hemoglobin. A. It is found in the plasma portion of blood. |
C. It is composed of four protein chains and four heme groups. |
In adults, red blood cell production occurs in __________. A. the liver |
C. red bone marrow |
Bilirubin is cleared from the body by __________. A. the pancreas |
C. the liver |
An abnormal excess of erythrocytes is called __________. A. polycythemia |
A. polycythemia |
The most abundant leukocytes are __________. A. neutrophils |
A. neutrophils |
On a blood smear slide prepared using Wright’s stain, you observe a large cell with a U-shaped nucleus and pale blue cytoplasm. This cell is most likely a(n) __________. A. eosinophil |
D. monocyte |
Platelet formation is regulated by __________. A. thrombopoietin |
A. thrombopoietin |
Hemostasis leads to __________. A. heme production |
B. stoppage of bleeding |
The first step in hemostasis is __________. A. vascular spasm |
A. vascular spasm |
When a person has an acute bacterial infection, such as meningitis or appendicitis, which type of leukocyte increases in number? A. lymphocytes |
C. neutrophils |
Which type of leukocyte is responsible for antibody production? A. lymphocytes |
A. lymphocytes |
When we take anti-histamines, we are countering the effects of which type of leukocyte? A. neutrophils |
C. basophils |
What do the lymphoid stem cells give rise to? A. granulocytes |
D. lymphocytes |
Chapter 17- The Heart
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