De la tête aux pieds — from head to toe. Learn each part of the body with its article: you'll need the gender the moment something hurts. Start with the head:

French	English
la tête	the head
l'œil — les yeux	the eye — the eyes
l'oreille (f)	the ear
le nez	the nose
la bouche	the mouth
la dent	the tooth
la gorge	the throat

L'œil and les yeux look like two different words — and sound like it too: l'œil is roughly “luh-y”, les yeux “lay-zyeu”, with a liaison.