Leukocytes

Question 1

Where is are WBC and Thrombocytes found

Answer 1

Buffy coat

Question 2

What are the 2 types of WBC

Answer 2

1. Granulocytes - Contains granules in the cytoplasm
2. Agranulocytes - No granules in cytoplasm

Question 3

What are the different types of Granulocytes

Answer 3

• Neutrophils
• Eosinophils
• Basophil

Question 4

What are the 2 types of Agranuloctyes

Answer 4

1. Lymphocytes
2. Monocytes

Question 5

What are some WBC characteristics

Answer 5

Amoeboid movement: Move cytoplasm in the direction of movement
Diapedesis - Cell flattens and leaves vessels
Chemotaxis- Cell attracted by inflammatory chemicals
Pus - Dead WBC at the site of

Question 6

Neutrophil - % of Neutrophil in circulation, what type of WBC, and function

Answer 6

60%-70% of WBC in circulation
- MOST ABUNDANT
- Granulocyte -3 Lobated nuclei
- First responders to leave circulation, secrete enzymes (Lysosomes) that kill bacteria
- Numbers of Neutrophils increase during bacterial infections

Question 7

Eosinophil - % of Eosinophil in circulation, what type of WBC, and function

Answer 7

2%-4% of WBC in circulation
- RED Granulocyte/ Lobated nuclei - 2 lobes
- Eosinophils elevated during allergic and inflammatory reaction
- Eosinophils secrete anti-inflammatory chemicals: Anti-histamine

Question 8

Basophil - % of Basophil in circulation, what type of WBC, and function

Answer 8

0.5 - 1% Circulating WBC
- LEAST ABUNDANT
- Granulocyte/ Blue stain
- Numbers increased in allergic and inflammatory reaction
- Release inflammatory chemicals (Histamine, Heparin)

Question 9

Lymphocyte - % of Lymphocyte in circulation, what type of WBC, and function

Answer 9

20-25% of WBC in circulation
- Agranulocyte
- Found in lymphatic tissue
- Involved in antibody production, attacking abnormal and viral infections

Question 10

Monocytes - % of Monocytes in circulation, what type of WBC, and function

Answer 10

3-8% of WBC circulating
- Largest WBC - Agranuloctye
-Remain in circulation for 3 days, then become tissue macrophages
- Numbers increase during prolonged infection

Question 11

What is a platelet composed of and what is its function

Answer 11

• Platelets are not cells, they are cytoplasmic
  pieces from megakaryocytes found in the red bone marrow and are secreted into circulation
• Function: Platelet plug