Physiology

Question 1

What is the relative viscosity of blood?

Answer 1

3x

Question 2

What is the relative viscosity of plasma ?

Answer 2

1.5x

Question 3

Give an example of a hematopoietic growth inducer?

Answer 3

IL-3

Question 4

Where is erythropoietin produced?

Answer 4

90% kidney (10% liver)

Question 5

What hormone increases EPO production?

Answer 5

Epinephrine (& norepinephrine)

Question 6

When is maximum epo production reached after stimulation ?

Answer 6

1-5 days

Question 7

Where is B12 absorbed ?

Answer 7

In the ileum

Question 8

How does pernicious anemia differ from megaloblastic anemia?

Answer 8

Pernicious is deficiency in intrinsic factor not the vitamin itself

Question 9

What is the volume of RBCs?

Answer 9

90 um^3

Question 10

Percentage of iron used in hemoglobin?

Answer 10

64%

Question 11

Percentage of iron used in myoglobin?

Answer 11

4%

Question 12

Percentage of iron stored as ferritin?

Answer 12

15-30%

Question 13

Name of macrophages in skin?

Answer 13

Langerhans

Question 14

Name of macrophages in placenta?

Answer 14

Hofbauer

Question 15

Name of macrophages in bones?

Answer 15

Osteoclasts

Question 16

Name of macrophages in lymphoid organs?

Answer 16

Dendritic cells

Question 17

Name of macrophages in intestines?

Answer 17

M cells

Question 18

Name of macrophages in brain?

Answer 18

Microglia

Question 19

Name of macrophages in alveoli?

Answer 19

Dust cells

Question 20

What do macrophages produce to stimulate inflammation?

Answer 20

TNF & IL-1

Question 21

What is normal bleeding time?

Answer 21

1-6 minutes

Question 22

What is normal clotting time?

Answer 22

6-10 minutes

Question 23

Most common blood type?

Answer 23

O

Question 24

Least common blood type?

Answer 24

AB

Question 25

Percentage of Rh+ factor in all population and black population?

Answer 25

85% and 100%