cells in immunity

Question 1

What is the function, properties and approximate size of small lymphocytes?

Answer 1

aid in immune system
no granules, condensed chromatin, cytoplasm = small pale blue rim
6-9 µm

Question 2

What is the function, properties and approximate size of large lymphocytes?

Answer 2

aid in immune system
no granules, larger cytoplasm
9-15µm

Question 3

What is the function, properties and approximate size of monocytes?

Answer 3

phagocytosis and antigen presentation
kidney-shaped nucleus, cytoplasm = pale blue
12-20µm

Question 4

What is the function, properties and approximate size of neutrophil?

Answer 4

phagocytose and destroy bacteria
segmented nucleus, cytoplasm = pale blue-pink, granules = pink-salmon
12-15µm

Question 5

What is the function, properties and approximate size of neutrophil?

Answer 5

phagocytose and destroy bacteria
segmented nucleus, cytoplasm = pale blue-pink, granules = pink-salmon
12-15µm

Question 6

What is the function, properties and approximate size of eosinophil?

Answer 6

kill multicellular parasites and phagocytose immune complexes
nucleus is bilobed, granules = red/orange
12-15µm

Question 7

What is the function, properties and approximate size of basophil?

Answer 7

@ site of infection + release substances mediate inflammatory response
nucleus is bilobed or S-shaped, granules = blue/black
10-12µm

Question 8

What is the function, properties and approximate size of red blood cells?

Answer 8

transportation of oxygen and carbon dioxide
biconcave discs, no nucleus
7-8µm

Question 9

What is the most common leukocyte in human blood (adults)?

Answer 9

neutrophil

Question 10

What is another name for the most common leukocyte?

Answer 10

polymorphonuclear leukocytes (PMN)

Question 11

What is another name for the most common leukocyte?

Answer 11

polymorphonuclear leukocytes (PMN)

Question 12

What is the second most common leukocyte in human blood?

Answer 12

lymphocytes

Question 13

Another type of leukocyte has a nucleus which may be kidney‐shaped, bean-shaped, or horseshoe‐shaped, and makes up about 5‐8% of all leukocytes. What is this cell?

Answer 13

Monocytes

Question 14

Which granulocyte is characterised by the presence of coarse cytoplasmic granules which stain a deep purple colour, so densely that the nucleus is usually obscured?

Answer 14

Basophil

Question 15

Which leukocytes are approximately the same size as neutrophils, with cytoplasmic granules that stain a bright pink‐orange colour?

Answer 15

Eosinophil