Human immune recognition, defense, and immune memory. Clinical treatment and medical history remain in Medicine.
Test your knowledge with these top questions!
Ready-made antibodies given as antivenom provide which kind of immunity?
Borrowed antibodies break down within weeks, while a vaccine teaches the body to keep making its own.
Which antibody class appears first in the blood during a new infection?
A single IgM molecule is five antibodies joined together, giving it ten binding sites to clump germs.
Antibodies are also known by which scientific name?
The Ig in labels like IgG and IgM is short for immunoglobulin, the clinical name for antibodies.
Which antibody class triggers the histamine release behind hay fever allergies?
IgE normally helps fight parasitic worms, so hay fever is a case of mistaken identity.
What is the medical name for human earwax?
Earwax contains shed skin cells as well as secretions from two types of glands.
How does intact human skin help stop germs from entering the body?
Even a tiny break in the skin can give microbes a route into tissues that intact skin would block.
Hay fever most often involves an allergic reaction to which plant material?
Many hay fever triggers come from wind-pollinated plants, which scatter pollen through the air rather than rely on insects.
Healthy human skin usually has which surface pH condition?
The acidic film, often called the acid mantle, helps inhibit some microbes on the skin.
Where do glands produce human earwax?
Earwax helps trap dust before the particles reach the delicate eardrum.
Which protein helps toughen the outer cells of human skin?
Keratin also forms much of hair and nails, giving these structures strength as their cells harden.