1.) involuntary - done without choice or thought
2.) muscles - tissues that enable your body to move
3.) muscular system - the body system that helps the body and organs inside the body move
4.) digestion - the bodily process by which food is broken down into a usable form
5.) digestive system - the system that processes energy-giving food in the body
6.) esophagus - a muscular tube that connects the mouth to the stomach
7.) intestine - an organ, connected to the stomach, that continues the digestive process
8.) stomach - the organ in your body where food goes to be partially digested
