Blood and immunity mnemonic

Functions of the five immunoglobulins

The mnemonic

GAMED

What each word stands for

  • GIgG: main antibody, crosses placenta
  • AIgA: secretory, mucosal defence
  • MIgM: first in primary response, pentamer
  • EIgE: allergy and parasites
  • DIgD: B-cell surface receptor

Why it matters clinically

Helps interpret serology, such as IgM for acute infection.

Where it stops being reliable

It gives roles only, not concentrations or half-lives.

Teaching aid, still awaiting independent review. Confirm facts in a standard source.

More mnemonics

Common questions

What is the Blood and immunity mnemonic?

GAMED. It helps you recall: Functions of the five immunoglobulins.

What does "G" stand for?

IgG: main antibody, crosses placenta

What does "A" stand for?

IgA: secretory, mucosal defence

What does "M" stand for?

IgM: first in primary response, pentamer

What are all the parts of the GAMED mnemonic?

G: IgG: main antibody, crosses placenta; A: IgA: secretory, mucosal defence; M: IgM: first in primary response, pentamer; E: IgE: allergy and parasites; D: IgD: B-cell surface receptor.

Which topic does this mnemonic belong to?

It belongs to Blood and immunity in Physiology.

Where does this mnemonic stop being reliable?

It gives roles only, not concentrations or half-lives.

How is this useful clinically?

Helps interpret serology, such as IgM for acute infection.

How do I make this mnemonic stick?

Say it aloud, write it from memory tomorrow, then again in a week. Then test yourself on a Physiology question about Blood and immunity.

Is this a standard mnemonic?

It is a teaching aid written or adapted by our team. Some resemble ones students share informally. Check any fact that matters in a standard source.