Venomous snakes have 2 venom glands, one on each side of their head, behind their face (about where their cheeks are, if it can be said snakes have cheeks).
Where Does The Poison In Snakes Teeth Come?
There is something go along the bottom of there mouth like this and then some that look like a vane but it is filled with poison leads to the teeth.hop that helps you!;)