Question

What are the components of cytoplasmic granules of mast cells?

1) Histamine
2) Heparin
3) Proteases
4) All of the above

Answer 1

Mast cells contain cytoplasmic granules composed of histamine, heparin, and proteases, all of which are released during an immune response.

Step-by-step explanation:

The components of cytoplasmic granules of mast cells include histamine, heparin, and proteases. Upon activation by allergens, mast cells release these granules which play a critical role in the body's immune response. Histamine is responsible for causing vasodilation and increased blood flow, contributing to inflammation and allergy symptoms such as itching, swelling, and redness. Heparin is an anticoagulant that prevents blood clotting. Mast cells also secrete proteases, which can break down proteins and aid in the immune response. The correct answer is 4) All of the above.