Chp 17 Quiz 3

Feces are about__________ percent water.

• 75
• 50

• 33

• 25

What structure is located between the pharynx and stomach?

• Duodenum

• Pancreas

• Esophagus

• Bile duct

Which of the following is a function of the liver?

• It produces red blood cells.

• It secretes chymotrypsin.

• It forms glucose from noncarbohydrates.

• It stores vitamin C.

A dentist explains to their patient that in order to avoid cavities, one must brush their teeth often enough to remove bacteria. How does bacteria cause cavities?

• Bacteria destroy the gums so that the teeth loosen.

• Bacteria metabolize carbohydrates in food, producing acidic by-products that damage enamel and dentin.

• Bacteria directly secrete acids that dissolve the enamel.

• Bacteria can infect the gums, causing dental cavities.

What is a function of the digestive system?

• Mechanically and chemically assembles food from absorbed nutrients.

• Sends cellular debris to lysosomes.

• Ingests and breaks down food, absorbs nutrients, and defecates the unabsorbed material.

• Absorbs nutrients in the mouth, pharynx, esophagus and stomach, and releases nutrients in the intestines.

An X-ray series of the bile ducts is called a__________.

• cholangiogram
• cholecystectomy

• cholelithiasis

• cholecystogram

Which of the following is true about bile?

• Cholecystokinin stimulates its production.

• It contains concentrated enzymes that digest carbohydrates.

• Secretin stimulates its release into the duodenum.

• It is produced by the liver.

Activities of the digestive system generally increase when it is stimulated by__________ impulses.

• parasympathetic
• sensory 

• somatic

• sympathetic 

Which is a voluntary part of the swallowing reflex?

• The epiglottis closes off the top of the trachea.

• The tongue presses against the uvula and soft palate.

• The tongue rolls chewed food into a bolus and pushes it to the oropharynx.

• Muscles pull the pharynx upward toward the food.

A patient presenting with pronounced heartburn is seen by their physician and subsequently receives a diagnosis of a hiatal hernia. This specific condition results from an interaction involving the stomach and which other anatomical structure?

• Diaphragm

• Small intestine

• Abdominal wall

• Heart