Question

Which of the following statements are correct?

1. Basophils are most abundant cells of the total WBCs. 
2. Basophils secrete histamine, serotonin and heparin.
3. Basophils are involved in inflammatory response.
4. Basophils have kidney shaped nucleus. 
5. Basophils are agranulocytes.

Choose the correct answer from the options given below:

Options

• C and E only

• B and C only

• A and B only

• D and E only

Answer 1

B and C only

Explanation:

Statement B is correct: Basophils are involved in immune responses. They secrete histamine along with other chemicals like serotonin and heparin. These chemicals are important for inflammatory processes. Statement C is correct: Basophils are involved in various types of inflammatory responses. In times of injury or infection, they release inflammatory mediators such as histamine and serotonin. Statement A is incorrect: Neutrophils are the most abundant type of WBC. Statement D is incorrect: Basophils have a bilobed or lobulated nucleus. Statement E is incorrect: Basophils are granulocytes. They contain granules in their cytoplasm.