Exam 3- Blood Hemopoesis

Question 1

Which type of WBC is a precursor of osteoclasts?

Answer 1

Monocytes

Question 2

What are the functions of albumin, the most common protein in blood plasma?

Answer 2

Maintains fluid within capillaries by osmotic pressure

Contributes to blood’s viscosity.

Question 3

Which of these is not true about platelets?

Answer 3

Platelets are cells.

Question 4

Which of these are granulocytes?

Answer 4

Neutrophils

Eosinophils

Basophils

Question 5

By what mechanism are old RBCs removed from the bloodstream?

Answer 5

Removed by the spleen via filtration and macrophage destruction

Question 6

Which of these is a function of blood?

Answer 6

Blood helps parts of the body to maintain temperature.

Blood transports oxygen (As O2) bound to hemoglobin

Question 7

The “granules” within granulocytes store

Answer 7

Cytotoxic substances

Question 8

Which is the most abundant type of WBC?

Answer 8

Polymorphonuclear leukocytes.

Question 9

T/F Plasma is about 55% of the volume of blood

Answer 9

TRUE

Question 10

T/F Platelets are found in the “buffy coat” after centrifugation of blood.

Answer 10

TRUE

Question 11

T/F Plasma is about 92% water by weight.

Answer 11

TRUE

Question 12

Which of these are true of platelets?

Answer 12

During the process of clotting they adhere to the basal lamina of vessels.

They originate from megakaryocytes

They promote the formation of fibrin networks in blood clots.

Question 13

Which of these is true of white blood cells?

Answer 13

WBCs become shaped like ameobae after they leave the circulatory system.

WBCs function in tissue repair.

Question 14

A hematocrit reading below the normal range signifies

Answer 14

Anemia

Question 15

What type of WBCs are in general more abundant when humans are infested with helminth parasites?

Answer 15

Eosinophils

Question 16

Which type of WBC is most similar to mast cells?

Answer 16

Basophils

Question 17

Erythrocytes are characterized as:

Answer 17

Bi-concave discs with high flexibility

Question 18

Which of these is not a function of blood?

Answer 18

Production of exocrine secretions.

Question 19

Which of these are true about bone marrow?

Answer 19

Large numbers of adipocytes are found in yellow bone marrow.

Red bone marrow contains pluripotent stem cells.

Question 20

Basophilic cells stained with a basic dye usually have nuclei that are

Answer 20

Blue or bluish purple

Question 21

By weight, what is the ratio of RBCs to WBCs in blood?

Answer 21

44 to 1

Question 22

Which of the following statements about atherosclerosis is true?

Answer 22

Atherosclerosis is associated with dyslipidemia, hyperglycemia, hypertension, and smoking.

Question 23

Which is not true of leucocytes?

Answer 23

They have hemogibling

Question 24

Which of these is true of hemopoeisis?

Answer 24

Colony stimulating factors promote the maturation of granulocytes.