science Flashcards
what are the 3 main functions of the digestive system
digests food, absorbs nutrients, and eliminates food waste
what is the esophagus’s function
transports food from mouth into stomach
what is the mouth’s function
Where food enters
what is the liver’s function
produces bile
what is the stomach’s function
breaks down food
what is the gall bladder’s function
store bile
what is the pancrea’s function
produces digestive enzymes
what is the small intestine’s function
absorb nutrients
what is the large intestine’s function
absorbs water
What is the anus’ function
releases the waste
What is the rectum’s function
stores waste
Define Glucose
the main type of sugar in the blood and is the major source of energy for the body’s cells
Define bile
a fluid that is made and released by the liver and stored in the gallbladder
Define Bolus
a small round soft mass (chewed food)
Define Chyme
the semifluid mass of partly digested food expelled by the stomach into the duodenum.
Define Peristalsis
the automatic wave-like movement of the muscles that line your gastrointestinal tract
Define Mechanical Digestion
physically breaking down food substances into smaller particles undergo chemical digestion
Define Chemical Digestion
certain enzymes that break down nutrients, such as carbohydrates, proteins, and fats, into smaller molecules
Define saliva
The watery fluid that is secreted into the mouth by the salivary glands.
