Mastoid nodes
Nodi mastoidei · Bradavkové uzliny
Lymphatic & immune
Looks like
Small nodes on the bone behind the ear.
What it does
Filter lymph from the scalp above and behind the ear and the back of the ear.
Keeping it well
Swell with scalp infections, head lice and eczema, and in German measles. Usually harmless and they go down in weeks.