quiz #5 - blood

Question 1

what is NOT a major function of the blood?

Answer 1

production of oxygen

functions: transportation of heat, protection against infectious disease, transportation of nutrients

Question 2

the hematocrit is a measure of the percentage of whole blood occupied by…

Answer 2

RBCs

Question 3

what percentage of blood plasma is water?

Answer 3

91.5%

Question 4

which plasma proteins plays a role in blood clotting?

Answer 4

Fibrinogen

Question 5

a megakaryoblast will develop into…

Answer 5

a platelet

Question 6

Progressive liver failure may lead to serious bleeding problems due to:
a) reduced production of thrombopoietin
b) a reduction in the production of platelets
c) a reduction in the cholesterol production
d) a reduction in the number of pluripotent stem cells

Answer 6

a, b

Question 7

which hormones stimulates proliferation of red blood cells in red bone marrow?

Answer 7

Erythropoietin (EPO)

Question 8

Ferritin is a protein used to…

Answer 8

store iron in the liver, muscle, & spleen

Question 9

Jaundice, a yellowing of the skin, is a condition caused by the deposition of bilirubin in the skin. It may be associated with:
a) excessive breakdown of red blood cells
b) cancer of the bowel or pancreas
c) blockage of bile drainage by gallstones
d) increased atmospheric oxygen

Answer 9

a, b, c

Question 10

towards the end of erythropoiesis in the bone marrow, a cell loses its nucleus and becomes a(n)

Answer 10

reticulocyte

Question 11

Erythropoiesis may be stimulated by:

a) pulmonary disease that decreases available oxygen
b) excessive bleeding
c) traveling to high altitudes
d) diving in deep water

Answer 11

all of the above

Question 12

which blood cell is a phagocyte?

Answer 12

Neutrophil

Question 13

which blood cells releases granules that intensify the inflammatory response and promote hypersensitivity (allergic) reactions?

Answer 13

Basophil

Question 14

Which blood cells phagocytizes antigen-antibody complexes and is effective against parasitic worms?

Answer 14

Eosinophil

Question 15

which blood cells are the main soldiers in the immune system battles?

Answer 15

Lymphocyte

Question 16

the process of a white blood cell squeezing between endothelial cells to exit a blood vessel is called…

Answer 16

emigration

Question 17

which hormones stimulates the development of megakaryoblasts?

Answer 17

Thrombopoietin

Question 18

which correctly lists the sequence of steps that occur during hemostasis in response to a damaged blood vessel?

Answer 18

vascular spasm, platelet plug formation, clotting

Question 19

the intrinsic and extrinsic pathways of blood clotting are identical after formation of…

Answer 19

prothrombinase

Question 20

which substance is an anticoagulant produced by mast cells and basophils?

Answer 20

Heparin

Question 21

which antibodies would you find in the plasma of a person with type O blood?

Answer 21

Anti-A & anti-B

Question 22

what blood type is a person if their plasma contains ONLY anti-A agglutinin?

Answer 22

B

Question 23

an individual with leukemia requires a bone marrow transplant. The donor may be a person who gives the recipient stem cells that are in the bone marrow from his or her _____ or the stem cells may come from a(n) _____

Answer 23

hip bone,

umbilical cord

Question 24

a condition in which inadequate intake of vitamin B12 or folic acid causes production of large abnormal red blood cells is called…

Answer 24

megaloblastic anemia