Ch3 Blood

Question 1

What is the speed of blood through the vasculature?

Answer 1

1 foot/sec

Question 2

How long does it take for blood to complete 1 circulation?

Answer 2

20 sec

Question 3

Precursor of erythrocyte?

Answer 3

Proerythroblast

Question 4

What is the result if the bone marrow does not produce enough RBCs?

Answer 4

Aplastic Anemia

Question 5

Erythropoietin is a hormone that simulates the production of RBCs, where is it produced?

Answer 5

Mostly in kidneys

but also the liver

Question 6

Folic Acid and Vitamin B12 are important in the production of mature RBCs, if the diet is poor, what can this lead to?

Answer 6

Pernicious Anemia

Question 7

Elevated Hct is termed what ?

Answer 7

Polycythemia

Question 8

Ideal Hct for CPB?

Answer 8

22-25%

Question 9

Arterial Head occlusion should be set at?

Answer 9

Set at 30” above the pump head with a

Fall of 1cm/min

Question 10

Movement of WBC is know as?

Answer 10

Chemotaxis

Question 11

Passage through the walls of blood vessels in known as?

Answer 11

Diapedesis

Question 12

Which of the following is the largest?
Leukocytes
RBC
Platelets

Answer 12

Leukocytes

Question 13

WBCs that contain granules?

Answer 13

Granulocytes

• Neutrophils
• Basophils
• Eosinophis

Question 14

WBCs that do not contain granules?

Answer 14

Lymphocytes
and
Monocytes

Question 15

WBC move to the walls of the blood vessels?

Answer 15

Margination

Question 16

Produced in the Bone Marrow

Comprise 60% of WBC

Answer 16

Neutrophils

Question 17

2 lobed WBC
Comprise 1 -3% of WBC
Increase with allergies and parasitic infections.

Answer 17

Eosinophils

Question 18

Contains nuclei and granules
Comprise < 1% of WBC
Phagocytic and release heparin and histamines

Answer 18

Basophils

Question 19

Largest of the WBCs?
2 -4 times the diameter of RBC
Become macrophages after leaving the blood and entering the tissues.

Answer 19

Monocytes

Question 20

Increase counts during viral infections such as mononucleosis.
Comprises 25% of WBCs.
Occur in 2 forms (B cells and T Cells) and are involved in the immune system in the production of antibodies.

Answer 20

Lymphocytes