ch.18

Question 1

Blood plasma is the

Answer 1

extracellular matrix (liquid portion)

Question 2

Which of the following can carry oxygen?

Answer 2

Red blood cells

Question 3

Serum is

Answer 3

liquid from coagulated blood

Question 4

An individual counts a total of 50 leucocytes while doing a differential count. The count is as follows: neutrophils = 35 eosinophils = 1 lymphocytes = 11 basophils = 0 monocytes = 3

Answer 4

normal

Question 5

Bilirubin

Answer 5

wastes from red blood cells specificially orange pigment

Question 6

Whenever a small blood vessel, i.e., a capillary, is injured and blood leaks out, the holes are temporarily filled up with

Answer 6

platelet plug

Question 7

Probably the most important factor in preventing coagulation of blood in the normal, intact circulation is

Answer 7

the normal smooth endothelial surface of the blood vessels

Question 8

All of the following increase osmotic pressure of the blood except

Answer 8

water

Question 9

Which of the following is NOT a CORRECT fact about erythrocytes?

Answer 9

FAL? produced in marrow adults

Question 10

A decreased amount of calcium in the blood would

Answer 10

slow down blood clotting

Question 11

The most abundant constituent of plasma is

Answer 11

water

Question 12

The hematocrit provides information concerning what?

Answer 12

percentage of red blood cells in blood (total volume)

Question 13

Increased water in the plasma does which of the following?

Answer 13

raises blood pressure

Question 14

A transfusion of mismatched blood may result in severe kidney damage and death. This is due to the clumping or agglutination of the

Answer 14

red blood cells ANTIBODIES go against HOST red blood cells causing CELL LYSIS, BLOOD CLOTS

Question 15

Blood serum is used for blood tests because

Answer 15

the antibodies have no clotting factors (makes it safer)

Question 16

The viscosity of blood is due mainly to

Answer 16

protein in red blood cells

Question 17

Monocytes

Answer 17

agranular WBC = 3–8%, phagocytosis

Question 18

Ingestion of foreign matter by cells such as the monocyte is known as

Answer 18

phagocytosis

Question 19

Histamine, from mast cells in tissue spaces, has what effect?

Answer 19

causes inflamation

Question 20

A differential blood count provides information concerning what?

Answer 20

infection, poisoning, lukimia, parasites, or allergies

Question 21

Erythrocytes carry

Answer 21

red blood cells -99% of blood, carry oxygen

Question 22

Platelets help to stop bleeding by

Answer 22

sticking to wall, activate adnesion, create plug

Question 23

Which of the following is/are needed in the formation of red blood cells?

Answer 23

hemoglobin + vitamins & iron

Question 24

The formation of long, irregular crystals of hemoglobin “S” causes erythrocytes to take an irregular shape in the condition called

Answer 24

sickle cell anemia

Question 25

Reticulocytes are nucleated immature cells that develop into mature

Answer 25

red blood cells

Question 26

Agglutinogen is an antigen in the

Answer 26

surface antigen on the red blood cells

Question 27

Which of the following blood groups has no agglutinogens in its red blood cells?

Answer 27

type O

Question 28

Type A blood

Answer 28

has antigen on red cell surface & anti-B antibodies in the plasma

Question 29

All of the following choices are compatible pairs of donor & recipients, respectively, except

Answer 29

A–B

Question 30

Two important substances needed for the synthesis of hemoglobin are

Answer 30

heme group; iron containing; vitamin B₁₂; amino acids

Question 31

Which of the following is an agranulocyte?

Answer 31

lymphocyte, monocyte; agranulocyte and lymphocyte

Question 32

The hemocytoblast is the precursor of

Answer 32

red blood cells and platelets

Question 33

Which of the following is not a normal “blood gas”?

Answer 33

normal oxygen, carbon dioxide, nitrogen

Question 34

Which sequence is CORRECT concerning hemostasis?

Answer 34

1. Fibrinogen → fibrin 2. Clot retraction 3, 4, 1, 2