Histology of Blood: RBC and WBC

Question 1

What are the constituents of blood?

Answer 1

Plasma
Erythrocytes
Leukocytes
Platelets

Question 2

What makes erythrocytes unusual?

Answer 2

No organelles
Haemoglobin
Circular, biconcave disc

Question 3

Why are erythrocytes biconcave?

Answer 3

Increases surface area

Question 4

What is the life span of erythrocytes?

Answer 4

120 days

Question 5

What is the function of RBC?

Answer 5

Oxygen transport

Question 6

What is the function of WBC?

Answer 6

Defence from foreign bodies

Question 7

What are the 2 groups of leukocytes?

Answer 7

Granulocytes/myeloid cells
Non-granulocytes

Question 8

What are the granules in myeloid cells?

Answer 8

Chemical-filled vesicles

Question 9

What is unusual about the nucleus of myeloid cells?

Answer 9

Multi-lobed

Question 10

What is a Different name given to granulocytes?

Answer 10

Polymorphonuclear leukocyte

Question 11

What are the 3 types of myeloid cells?

Answer 11

Neutrophils
Eosinophils
Basophils

Question 12

What are the 2 types of agranulocytes?

Answer 12

Lymphocytes
Monocytes - macrophages in tissues

Question 13

List the WBC in order of abundance

Answer 13

Neutrophils
Lymphocytes
Monocytes
Eosinophils
Basophils

Question 14

What are neutrophils capable of?

Answer 14

Phagocytosis

Question 15

What aqueous substance does neutrophils make up in human defence?

Answer 15

Pus

Question 16

What kind of nucleus do eosinophils have?

Answer 16

Bilobed

Question 17

When are eosinophils found?

Answer 17

Mucosal inflammation
Allergic response
Parasitic worms

Question 18

What granules are present in basophils?

Answer 18

Histamine
Heparin
Serotonin

Question 19

When is the concentration of basophils at the highest?

Answer 19

Allergic hypersensitivity reactions

Question 20

What is the smallest leukocyte?

Answer 20

Lymphocyte

Question 21

What is the largest WBC?

Answer 21

monocyte