Question

Lacrimal secretions contain a type of antibody that blocks the passage of antigens to deeper internal tissues. Which type of antibody is this, and where can this antibody be found in the body?

Answer 1

The lacrimal glands secrete tears which act to lubricate and protect the cornea and eyeball from injury which may result from small particles such as dust. Tears are a watery fluid with an electrolyte content similar to that of plasma and contains: bactericidal enzymes known as lysozyme and lactoferrin.