DHN CH 4 Quiz

The _____ cells of the gastric glands synthesize and release intrinsic factor, which is necessary for vitamin B12 absorption

parietal

Absorption of ____ occurs in the large intestine

water and minerals

Which of the following typically acts as a probiotic?

yogurt

Lucia's three-year old daughter has been vomiting frequently over the past two hours and she is worried. Lucia is trying to decide whether or not to contact her daughter's pediatrician. Which of the following would be reasons to contact the pediatrician's office?

All of the choices are correct. - fever - severe abdominal pain - vomiting lasting longer than a few hours

Which of the following describes IBD

An autoimmune disorder

Treatment of IBS often includes making dietary changes and

Learning stress management strategies

Which of the following foods has the most acidic pH? -lemon juice -tomatoes -milk -black coffee

Lemon juice

Which of the following statements is true? -The pyloric sphincter controls the rate at which chyme enters the small intestine. -The colon is the major site of nutrient absorption in the human digestive system. -Those who are lean have a greater higher risk of gallstones than those who are obese. -The esophagus is the muscular valve that connects the stomach to the small intestine.

The pyloric sphincter controls the rate at which chyme enters the small intestine.

Antibiotic usage often leads to microflora imbalance in the digestive tract.

True

Composting is a technique whereby food waste is combined with tree trimmings, wood chips, leaves, and a source of bacteria such as animal manure. This mixture is stored in a special container and allowed to mature before being returned to the soil.

True

A primary function of the digestive system is the

breakdown of food into nutrients

The ___ is the middle segment of the small intestine

jejunum

Marcus has an infection that causes a temporary loss of villi. Based on this information, you would expect Marcus to _____ while he has this illness.

lose weight rapidly

The enzyme _____ breaks the disaccharide maltose into its two molecules of glucose

maltase

The process of digesting food begins in the

mouth

Which is secreted by the stomach

Gastric juices

Which of the microbes is associated with the development of most stomach ulcers

H. pylori

B has an autoimmune disease that affects salivary glands. As a result of this condition B,

Has trouble swallowing

Parietal cells secrete ions that form ___ in the stomach

hydrochloric acid