Question

are found especially in the mucous membrane, standing guard against parasites and allergens.
multiple choice
neutrophils
monocytes
lymphocytes
eosinophils
basophils

Explanation:

To solve this, we analyze each option:

• Neutrophils: Fight bacterial infections, not mainly for parasites/allergens in mucous membranes.
• Monocytes: Become macrophages, focus on phagocytosis of pathogens, not specific to parasites/allergens in mucous membranes.
• Lymphocytes: Involved in adaptive immunity (e.g., B/T cells), not the primary cell for parasite/allergen defense in mucous membranes.
• Eosinophils: Are abundant in mucous membranes, play a key role in defending against parasites and mediating allergic responses.
• Basophils: Involved in allergic reactions but less associated with parasite defense in mucous membranes compared to eosinophils.

Answer:

D. Eosinophils