DIGESTIVE AND EXCRETORY SYSTEM

Digestive System

Digests food, absorbs nutrients, and helps with the removal of waste from the body. It is composed of the mouth, esophagus, stomach, small intestine, large intestine, liver, pancreas, and gallbladder

Mouth

The teeth break down food, while the saliva digests the starches in the food

Esophagus

Tract where the food is pushed down the stomach through a series of wave like muscle contractions

Stomach

Food is broken down by the hydrochloric acid (pH 1.5-3.4)

Small Intestine

Absorbs nutrients into the body

Large Intestine

Absorbs water

Liver

Secretes bile to digest fat in the small intestine (bile created by the liver is stored in the gallbladder)

Gallbladder

Stores then releases the bile from the liver

Pancreas

Secretes digestive enzymes into the small intestine to aid digestion

Kidney

Filters the blood, and controls level of substances in the body

Ureter

Connects the kidney to the bladder

Bladder

Stores liquid waste until urinated

Urethra

Transports urine from the bladder to outside of the body