Ch 19 Textbook Quiz

Question 1

Which of the following would be a normal hematocrit in an adult male
a) 22%
b) 36%
c) 47%
d) 73%

Answer 1

c) 47%

Question 2

which of the following is NOT a function of blood
a) transport of dissolved gases
b) distribution of nutrients
c) restriction of fluid losses through damaged vessels
d) digestion of nutrients

Answer 2

d) digestion of nutrients

Question 3

plasma proteins which act as antibodies and attack foreign proteins are classified as

Answer 3

gamma globulins

Question 4

an adult human contains about ___ of blood

Answer 4

4-6 L

Question 5

blood makes up __ of the total body mass

Answer 5

less than 10 percent

Question 6

the most abundant molecule present in blood plasma is

Answer 6

water

Question 7

the primary site of hemopoiesis in adult humans is in the

Answer 7

red bone marrow

Question 8

the specific process by which RBCs are formed is called

Answer 8

erythropoiesis

Question 9

chemotherapy tends to destroy normal marrow cells as well as cancerous cells. Which of the following might be used to stimulate hemopoiesis in a cancer patient?

Answer 9

erythropoietin

Question 10

the stem cell that differentiates to form all types of blood cells is the

Answer 10

pluripotent stem cell

Question 11

aged RBCs are destroyed mainly by macrophages in the

Answer 11

spleen

Question 12

which of the following statements is true:
a) Iron is stored in the liver as globin
b) The globin portion of Hgb is eliminated as urobilinogen
c) Biliverdin is produced from the breakdown of the non-iron portion of heme
d) RBCs can live for years before being broken down

Answer 12

C

Question 13

A high reticulocyte count might indicate

Answer 13

increased production of RBCs

Question 14

which blood cell type is elevated in a parasitic infection

Answer 14

eosinophils

Question 15

which of the following is an agranular leukocyte that leaves the blood and becomes a wandering macrophage

Answer 15

monocyte

Question 16

WBCs are identified microscopically by the shape of their __ and the presence or absence of __ in the cytoplasm

Answer 16

nuclei, granules

Question 17

neutrophils and macrophages are active in

Answer 17

phagocytosis

Question 18

which formed elements of the blood are produced from fragmentation of megakaryocytes

Answer 18

thrombocytes

Question 19

which of the following statements describes platelets:
a) platelets are cytoplasmic fragments containing clotting elements
b) platelets are fully formed cells with clotting elements
c) platelets are derived from WBCs
d) platelets are derived from RBCs

Answer 19

a

Question 20

when a blood vessel is damaged, clot formation includes the conversion of fibrinogen into ___ by the action of the enzyme __

Answer 20

fibrin, thrombin

Question 21

vascular spasms and platelet plug formation are steps in

Answer 21

hemostasis

Question 22

during clotting, prothrombin is activated to form

Answer 22

thrombin

Question 23

which of the following begins the common pathway in clotting:
a) release of tissue factor
b) formation of prothrombinase
c) formation of fibrinogen
d) release of thromboplastin

Answer 23

b

Question 24

fibrinolysis refers to

Answer 24

dissolution of a clot

Question 25

clotting may occur in an undamaged blood vessel. When that clot breaks loose and circulates through the bloodstream it is called

Answer 25

an embolus

Question 26

which blood type in theory could be considered the universal donor

Answer 26

O

Question 27

An individual who lacks A and B agglutinogens and has both A and B agglutinins has ABO blood type

Answer 27

O

Question 28

In the condition "hemolytic disease of the newborn"

Answer 28

the baby's blood cells hemolyze because anti-Rh antibodies produced by the mother cross the placenta

Question 29

which of the following is true concerning the Rh blood group: a) presence or absence of Rh antigens is genetically determined b) people with blood type B are really B negative c) being Rh- is associated with sickle-cell disease d) Rh+ people can give blood to anyone

Answer 29

A

Question 30

the presence of an abnormal hemoglobin molecule results in the inability of RBCs to maintain their shape when oxygen levels in the blood decrease. This condition is known as

Answer 30

sickle-cell disease

Question 31

an inherited inability to produce clotting factor VIII or IX results in the condition known as

Answer 31

hemophilia

Question 32

Inadequate absorption of vitamin B12 leads to ___ anemia

Answer 32

pernicious

Question 33

which of the following blood diseases is characterized by the production of large numbers of immature leukocytes

Answer 33

leukemia