Food, Energy and Healthy Eating (HB Chapter 3) Lessons 3 and 4

Substance that breaks up fat particles. bile

Triangular organ located between the stomach and the first part of the small intestine that helps break down carbohydrates, proteins, and fats. pancreas

Last section of the digestive system. large intestine

Millions of finger-shaped structures folded into the inner surface of the small intestine. villi

Does many jobs in the body such as making bile for the digestive system (largest organ in the body). liver

Where waste material is compressed into solid form. rectum

Where bile is stored. gallbladder

A muscular opening at the end of the rectum. anus

Part of the digestive system where most chemical digestion takes place. small intestine

Fluid released by salivary glands when you eat. saliva

A thick, slippery substance produced by the body that lines the esophagus. mucus

Flap of tissue that seals off your windpipe and prevents food from entering the lungs as you swallow. epiglottis

J-shaped muscular pouch in the abdomen. stomach

Process by which your body breaks down food into small nutrient molecules. digestion

Muscular tube that connects the mouth to the stomach. esophagus

Waves of involuntary muscle contractions that push food toward the stomach. peristalsis

Process by which nutrient molecules pass through the wall of your digestive system into your blood. absorption

Protein that speeds up chemical reactions in the body. enzyme