Vocabulary 1
What is the first step in digestion?
Mastication (chewing)
Solid wastes that result from digestion.
Feces
How long is the digestive tract, from beginning to end?
25 to 30 feet
Where does 95% of the digestive process happen?
Small Intestine
A difficulty in digestion.
Indigestion
A reaction of the immune system to certain proteins found in food
Food Allergy
Flap of skin that closes to keep food from entering the trachea when you swallow food
Epiglottis
The stomach wall has a thick lining called ____?
Mucosa
How long does food usually stay in the stomach?
2-3 hours
Frequent expulsion of watery feces.
Diarrhea
A series of squeezing actions by the muscles in the esophagus that helps move food through the tube.
Peristalsis
A digestive juice produced by the liver to aid fat digestion
Bile
Describe the pathway of food in the digestion process (5 organs)
Mouth, esophagus, stomach, small intestine, large intestine
How does the liver aid in digestion?
Produces bile. Bile aids in fat digestion.
A burning pain in the middle of the chest caused by stomach acid flowing back into the esophagus
Heartburn
All the chemical changes that occur as cells produce energy and materials needed to sustain life
Metabolism
A mixture of gastric juices and chewed and swallowed food that combines in the stomach.
Chyme
What is the function of the large intestine?
Absorb Water
What 3 organs assist with digestion in the small intestine?
Pancreas, Liver, & Gallbladder
Small crystals that form from bile in the gallbladder.
Gallstones
A complex protein produced by cells to speed a specific chemical reaction in the body.
Enzymes
The passage of nutrients from the digestive tract into the circulatory or lymphatic system
Absorption
What is the function of the pancreas?
Secretes bicarbonate to neutralize the hydrochloric acid and produces digestive enzymes.
How many parts are the small intestine made out of?
Three. Duodenum (1 foot long), Jejunum (4 feet long), Ileum (5 feet long).
A disorder in which many abnormal pouches form in the intestinal wall
Diverticulosis