Basophils and Eosinophils

The video tutorial explores the characteristics, activation, and functions of basophils and eosinophils. Basophils are involved in hypersensitivity reactions and express various receptors. They play a role in conditions like anaphylaxis and rheumatoid arthritis. Eosinophils have unique granules and are implicated in disorders like asthma. They possess both intracellular and extracellular killing mechanisms and are involved in a range of pathological conditions.

What is the size range of basophils?

• 10 to 12 micrometers

• 15 to 18 micrometers

• 5 to 8 micrometers

• 2 to 4 micrometers

Which of the following receptors is NOT expressed by basophils?

• IL 3

• FC epsilon R1

• TLR 4

• CCR 2

What is the primary mediator stored in basophil granules?

• Serotonin

• Histamine

• Adrenaline

• Dopamine

Which cytokine is produced in large quantities after basophil activation?

• IL 10

• IL 6

• IL 4

• IL 1

What type of nucleus do eosinophils possess?

• Bilobed

• Unilobed

• Trilobed

• Multilobed

Which of the following is a major cationic protein found in eosinophil granules?

• Dopamine

• Histamine

• Serotonin

• Eosinophil peroxidase

In which type of countries are tissue invasive parasitic infections a frequent cause of eosinophilia?

• European countries

• Arctic countries

• Developing countries

• Developed countries