Blood Histology

Question 1

What are the 3 types of granulocyte?

Answer 1

Neutrophil, basophil and eosinophil

Question 2

Describe the appearance of neutrophils

Answer 2

Lobed nuclei, pink cytoplasmic granules

Question 3

Describe the appearance of eosinophils

Answer 3

Bi-lobed nuclei with brick red granules

Question 4

Describe the appearance of basophils

Answer 4

Bi-lobed nuclei with large, dark purple granules

Question 5

Describe the appearance of monocytes

Answer 5

Kidney shaped nuclei with light grey cytoplasm

Question 6

Describe the appearance of lymphocytes

Answer 6

Large round nuclei, little cytoplasm

Question 7

Describe the role of neutrophils

Answer 7

Most common leucocyte in blood, and is first line defence against pathogens (phagocytose and digest)

Question 8

Describe the role of basophils

Answer 8

Binding of IgE –> degranulation (histamine and heparin)

Question 9

Describe the role of eosinophils

Answer 9

Defence against parasites (increased numbers in allergic disease)