Functions
What are the three main functions of the digestive system?
1. Digestion
2. Absorption
3. Elimination
What is the primary function of your teeth?
break food into smaller pieces
True or False: Vomiting is a reflex in which the contents of the stomach are brought back up the esophagus and out of the mouth.
true
What structural problem involves insufficient production of lactase?
lactose intolerance
When does digestion begin?
It begins when you take your first bite of food.
What is digestion?
Digestion is the mechanical and chemical breakdown of foods for use by the body's cells.
Where does food go after it is swallowed?
the esophagus
True or False: Nausea results from acid reflux.
false
True or false: Gastritis is caused if bacteria or other foreign matter block the appendix and prevent the release of its secretions.
false
What transports the absorbed nutrients?
the cardiovascular system
What is elimination?
Elimination is the expulsion of undigested foods or body wastes.
What are the 3 tasks of the stomach?
1. mixing foods with gastric juices
2. storing swallowed food and liquid
3. moving chyme into the small intestine
True or False: Frequent or prolonged heartburn can be an indication of serious digestion disorders.
true
What is caused when foreign matter blocks the appendix and prevents the release of its secretions?
appendicitis
What process prepares food to be swallowed?
mastication
What is absorption?
Absorption is the passage of digested food from the digestive tract into the cardiovascular system.
What closes the opening to the nasal passages?
the uvula
What is indigestion caused by?
What is formed when cholesterol in bile crystallizes and blocks the bile duct between the small intestine and the gallbladder?
gallstones
What does the pancreas produce?
enzymes
What triggers the digestive process?
the nervous system
What do your salivary glands do?
They produce the first digestive juices used in the digestive process.
What can heartburn be a symptom of?
hiatal hernia
What structural problem includes pain in the upper right portion of the abdomen, nausea, vomiting, and fever?
gallstones
How much water should you drink in a day?
at least 64 ounces