I'm coming in a little late, sorry for that, but...
If you're doing a report, you may also wish to mention:
1) The 'tracheal glottis' which prevents a snake from choking on a meal much larger than it's head
2) 'undulation' which is how the muscles move food into the snake's stomach
3) their powerful digestive 'enzymes and acids' that allow a snake to digest an entire critter with bones and teeth included
4) a young snake is capable of converting up to 1/3 of it's prey directly to body weight
5) and finally, 'venom' which is used to prevent pray from hurting the snake by rapid immobilization and also begins necropsy, which really boils down to pre digestion, of the meal before the snake even starts to eat it
I hope this helps!
Cheers,
Jason