A&P - Chapter 27 (Part 5)

Question 1

What is another word for WBC?

Answer 1

Leukocytes

Question 2

What is the general function of WBCs?

Answer 2

Defence/immunity

Question 3

What are 2 categories of WBCs?

Answer 3

1. Granulocytes

2. Agranulocytes

Question 4

Granulocytes

Answer 4

Granules in the cytoplasm

Question 5

Agranulocytes

Answer 5

No granules in the cytoplasm

Question 6

What are 3 types of granular leucocytes?

Answer 6

1. Neutrophils
2. Eosinophils
3. Basophils

Question 7

What are 2 types of agranular leukocytes?

Answer 7

1. Lymphocytes

2. Monocytes

Question 8

What is the most numerous type of WBC?

Answer 8

Neutrophils

- 65%

Question 9

What do neutrophils do?

Answer 9

They are very active phagocytes against pathogens

Question 10

What are neutrophils attracted to?

Answer 10

Damaged cells at infection sites

Question 11

How are neutrophils attracted to damaged cells?

Answer 11

By chemotaxis

Question 12

Where are eosinophils most abundant?

Answer 12

In mucus membranes

Question 13

What kind of phagocytes are eosinophils?

Answer 13

Weak

Question 14

What does eosinophils do?

Answer 14

Serves protection against certain parasitic infections

Question 15

What do basophils secrete? (2)

Answer 15

1. Heparin

2. Histamine

Question 16

Heparin

Answer 16

A strong anticoagulant

Question 17

When is histamine released?

Answer 17

During inflammatory reactions

Question 18

Lymphocytes

Answer 18

Smallest WBC

Question 19

What is the 2nd most numerous component of blood?

Answer 19

Lymphocytes

- 25%

Question 20

What are 2 types of lymphocytes?

Answer 20

1. B lymphocytes

2. T lymphocytes

Question 21

What do B lymphocytes do?

Answer 21

They produce antibodies

Question 22

What do T lymphocytes do?

Answer 22

They directly attack foreign cells

Question 23

What does a differential WBC count test do?

Answer 23

It gives the proportions of each type of WBC as a percentage of the total WBC count

Question 24

What are 3 WBC disorders that can be detected from a differential WBC count test?

Answer 24

1. Leukopenia
2. Leukocytosis
3. Leukemia

Question 25

Leuko

Answer 25

White

Question 26

Leukopenia

Answer 26

Abnormally low WBC count

Question 27

Leukocytosis

Answer 27

Abnormally high WBC count

Question 28

What is the most common WBC disorder?

Answer 28

Leukocytosis

Question 29

What is leukocytosis usually result from?

Answer 29

Bacterial infections

Question 30

Leukemia

Answer 30

Blood cancer

- WBC count > 100,000 mm^3