Week 11: Blood

Question 1

has a total volume of approximately 5 liters

Answer 1

Blood

Question 2

The major component of plasma is __________.

Answer 2

water

Question 3

The process of blood cell production is called __________.

Answer 3

hematopoiesis

Question 4

All of the formed elements of the blood are formed from a single population of cells called __________.

Answer 4

hemocytoblasts

Question 5

The biconcave shape of red blood cells

increases the surface area of the red blood cell.

makes it easier for gases to move into and out of the cell.

allows for bending or folding of the cell.

enables it to pass through small blood vessels more easily.

Answer 5

increases the surface area of the red blood cell.

makes it easier for gases to move into and out of the cell.

allows for bending or folding of the cell.

enables it to pass through small blood vessels more easily.

Question 6

In contrast to red blood cells, leukocytes

Answer 6

can leave the blood and move by amoeboid movement through tissues.

Question 7

Which of these leukocytes is NOT correctly matched with its function or description?

Monocytes—Become macrophages.

Lymphocytes—Important in the immune response.

Basophils—Synthesize or produce antibodies.

Eosinophils—Involved in destroying certain worm parasites.

Neutrophils—Phagocytize microorganisms and other foreign substances.

Answer 7

Basophils—Synthesize or produce antibodies.

Question 8

__________ release histamine and heparin.

Answer 8

Basophils

Question 9

__________ perform phagocytosis, especially when out of the blood and in tissues.

Answer 9

Monocytes

Question 10

__________ are the largest of the leukocytes.

Answer 10

Monocytes

Question 11

Clotting factor activation can start with

Answer 11

the contact of clotting factors with connective tissue.

Question 12

results in platelets sticking to collagen exposed by blood vessel damage.

is mediated through von Willebrand factor.

causes the activation of the platelets.

allows for the platelets to change shape and release chemicals.

Answer 12

Platelet adhesion

Question 13

play an important role in hemostasis.

Answer 13

Platelets

Question 14

The healing process after clot formation involves

clot retraction.

repair of the damaged vessel by fibroblasts.

repair of the wound by division of epithelial cells.

conversion of plasminogen to plasmin.

Answer 14

clot retraction.

repair of the damaged vessel by fibroblasts.

repair of the wound by division of epithelial cells.

conversion of plasminogen to plasmin.

Question 15

Which of the following would inhibit the activation of platelets or the formation of the platelet plug?

Answer 15

Aspirin (which inhibits the synthesis of prostaglandins)

Question 16

Which of these statements concerning ABO blood types is correct?

Persons with type O blood have been called universal donors.

Persons with type B blood who receive type A blood would have a transfusion reaction.

To reduce the likelihood of a transfusion reaction, all possible blood groups should be correctly typed.

Antibodies in the blood of the donor can react with the antigens in the blood of the recipient.

Answer 16

Persons with type O blood have been called universal donors.

Persons with type B blood who receive type A blood would have a transfusion reaction.

To reduce the likelihood of a transfusion reaction, all possible blood groups should be correctly typed.

Antibodies in the blood of the donor can react with the antigens in the blood of the recipient.

Question 17

Inadequate vitamin B12 can cause __________ anemia.

Answer 17

pernicious

Question 18

Blood is a type of __________ tissue.

Answer 18

connective

Question 19

Which of the following is NOT a function of blood?

Answer 19

Transport of neurotransmitters

Question 20

A substance has been identified that stimulates the production of platelets. What is the most likely target of this substance?

Answer 20

Megakaryocytes