Phlebotomist Exam Prep

Category - Anatomy & Physiology

“I am Commander I. M. Unity; you can call me 'sir.' I coordinate millions of soldiers in the war against infection, inflammation, and allergies. My massive army defends your world from scoundrels like bacteria, viruses, and parasites, just to name a few. Currently, an annoying allergen is invading the eye region. I have dispatched a small team of fighters from the granulocyte division in response. Alright recruit, what’s the official name of this team?”

  1. Eosinophils
  2. Basophils
  3. Monocytes
  4. Neutrophils
Explanation

Answer: B - Basophils, a type of white blood cell, are responsible for the allergic reaction when an allergen invades the body. Basophils secrete histamine and serotonin in response to an allergen. Basophils make up the smallest percentage (0.5 - 1.0%) of the total white blood cell count.

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Additional Answers

Ted Chan, MBA says:

According to the NIH: A basophil is a type of immune cell that has granules (small particles) with enzymes that are released during allergic reactions and asthma. A basophil is a type of white blood cell and a type of granulocyte.

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