Haematology III

Question 1

How do red blood cells differ from white blood cells?

Answer 1

WBC are nucleated in contrast to RBC

Question 2

What are whiteblood cells also known as? e.g RBC = Erythrocytes

Answer 2

LEUKOCYTES

Question 3

WBC fucntion?

Answer 3

• defense vs pathogens
• toxin and waste removal
• remove damaged cells

Question 4

What are the 4 main characteristics of WBC?

Answer 4

• Phagocytosis
• Amoeboid movement
• attracted towards specific chemical stimuli
• EXTRAVASATION (migrates out of blood stream)

Question 5

What is amoeboid movement?

Answer 5

• is how white blood cell move by cytoplasmic projection(crawling like movement)

Question 6

Which WBC are phagocytes?

Answer 6

Neutrophils, Eosinophils, Monocytes

Question 7

What are the 5 WBC in the body?

Answer 7

Neutrophils
Lympocytes
Monocytes
Eosonophils
Basophils
(never let monkey eat banana)

Question 8

What is the healthy Wbc count?

Answer 8

4-11 x 10^9 (per L of blood)

Question 8

What is the healthy Wbc count?

Answer 8

4-11 x 10^9 (per L of blood)

Question 9

In what two categories do WBC subdivide in?

Answer 9

• Granulocytes
• Agranulocytes

Question 10

Which WBC are granulocytes?

Answer 10

Neutrophils
Basophils
Eosinophils

Question 11

Which WBC are Agranulocytes?

Answer 11

Lymphocytes
Monocytes

Question 12

What is the RBC : Platelets : WBC ratio?

Answer 12

700 : 40 : 1

Question 13

What is the percentage composition of each type of WBC?

Answer 13

N = 50-70%
L = 20-30%
M = 2-10 %
E = 2-4 %
B = <1%

Question 14

What is the lobe structure of WBC? (Structure)

Answer 14

• N = 2-5 lobes
• L = Single round nucleus
• M = Horshoe shaped nucleus
• E = bilobed/ 2 lobes
• B = Bilobed S-shaped

Question 15

What is the smallest and largest WBC?

Answer 15

Monocytes Largest
Lymphocytes Smallest

Question 16

Function of neutrophils?

Answer 16

• first line of defence against bacterial infection
• (P)hagocytotic
• (M)obile
• 10 hours
• (major constituent of pus)

Question 17

Function of EUSONOPHILS?

Answer 17

• (T)oxins
• (A)llergies/Asthma
• (C)ombat parasites/bacteria
• 8 to 12

Question 17

Function of EUSONOPHILS?

Answer 17

• Release toxic compounds
• Allergies/Asthma
• Combat parasites/bacteria
• 8 to 12

Question 18

Basophils function?

Answer 18

• Inflammatory response

Question 19

Monocytes function?

Answer 19

• Phagocytic
• Migrate out of cell becoming macrophage

Question 20

Lymphocytes function?

Answer 20

Central role in all immunological defence mechanisms

Question 21

What type of lymphocytes?

Answer 21

T-cell
B-cells
NK cells (prevent CANCER)