Cellular Regulation

Question 1

The process of RBC production is called what?

Answer 1

Erythropoeis

Question 2

Erythropoietin is primarily produced by what?

Answer 2

Kidneys

Question 3

The life span of a RBC is about?

Answer 3

120 days

Question 4

What is a hormone secreted by the kidneys that increases the rate of production of RBC’s in response to falling levels of oxygen in the tissues?

Answer 4

Erythropoietin

Question 5

What is the term used to describe the average volume of RBC’s?

Answer 5

Mean Corpuscular Volume (MCV)

Question 6

What is the term used to describe the percentage of RBC’s that contains hgb?

Answer 6

Mean Corpuscular Hemoglobin Concentration (MCHC)

Question 7

What are reticulocytes?

Answer 7

Immature RBC’s

Question 8

If hct is increased what should you assess for?

Answer 8

Dehydration

Question 9

If hgb is decreased what does that mean?

Answer 9

Decrease oxygen to the tissues

Question 10

Hyperplasia is sometimes a normal alteration in what?

Answer 10

Cell growth

Question 11

The cellular alteration where a cell loses the appearance of the parent cell is known as what?

Answer 11

Anaplasia

Question 12

What is the term used to describe any new mass of cells that has no physiological purpose?

Answer 12

Tumor

Question 13

What is the term for programmed cell death and occurs in normal cells?

Answer 13

Apoptosis

Question 14

The ability of a cancer cell to travel and grow in another part of the body is referred to as what?

Answer 14

Metastasis

Question 15

The average lifespan of a WBC is what?

Answer 15

12-18hrs

Question 16

The time it takes for a stem cell to mature into a neutrophil is?

Answer 16

10-14 days

Question 17

What is the main function of RBC’s?

Answer 17

To carry oxygen t/o body

Question 18

What are normal hct levels?

Answer 18

Men: 39-50%; Women: 35-45%

Question 19

What are normal WBC levels?

Answer 19

4,500-10,000mcl

Question 20

What is a normal platelet count?

Answer 20

150,000-400,000mcl

Question 21

What are normal hgb levels?

Answer 21

Men: 14-18g/dl; Women: 12-16g/dl

Question 22

What are alterations in cellular regulation?

Answer 22

Deficient cell production
Defective production of cells
Destruction of cells
Excessive blood loss

Question 23

What is the term used to describe an increase in # or density of normal cells?

Answer 23

Hyperplasia

Question 24

What is the term used to describe a cell is normal for its type but not in its normal location?

Answer 24

Metaplasia

Question 25

What is the term used to represent a loss of DNA control over differentiation occurring in response to adverse conditions?

Answer 25

Dysplasia

Question 26

What is the term used to describe the regression of a cell to an immature or undifferentiated cell type?

Answer 26

Anaplasia