Lecture 10 - Haematology III (Leukocytes)

Question 1

Name the 5 main types of White Blood Cell

Answer 1

Granulocytes: Neutrophils, Eosinophils, Basophils
Agranulocytes: Lymphocytes, Monocytes

Question 2

Structural features of Monocytes?

Answer 2

Largest WBC, large kidney/horseshoe-shaped nucleus, extensive agranular cytoplasm, phagocytic

Question 3

Structural features of Neutrophils?

Answer 3

Multiple-lobed nucleus (2-5), granular cytoplasm, phagocytic

Question 4

Structural features of Lymphocytes?

Answer 4

Smallest WBC, no lobes (on nucleus), agranular cytoplasm

Question 5

Structural features of Eosinophils?

Answer 5

Bilobular (“sunglasses”) nucleus, granular cytoplasm

Question 6

Structural features of Basophils?

Answer 6

Bilobed “S-shaped” nucleus, granular (heparin + histamine) cytoplasm

Question 7

Functions of Neutrophils

Answer 7

First line of defence (also major constituent of pus)

Question 8

Functions of Eosinophils

Answer 8

Combat Parasitic Infections (also allergies + asthma)

Question 9

Functions of Basophils

Answer 9

(Probably) Inflammatory Response (but not much known because they are least common)

Question 10

Functions of Monocytes

Answer 10

Little function in blood - migrate out into tissues

Question 11

IIFunctions of Lymphocytes

Answer 11

Central role in all immune mechanisms (also first line of defence for viral infections)