Digestive system

1. The parts and its functions.

1.1. Mouth

1.1.1. Gullet

1.1.1.1. Stomach

1.1.1.1.1. Small Intestine

1.1.1.1.2. It is a muscular bag that produces digestive juices.The food is squeezed and mixed into simpler substances.

1.1.1.2. It is a long tube that connects the mouth to the stomach, It has muscles to push the chewed food down into the stomach.

1.1.2. Digestion starts. Teeth chews food into smaller pieces. Tongue mixes saliva with food. The soft chewed food is then rolled into small balls and swallowed.