WileyPlus ch.24 (Test 2)

Which of the following small intestine cells secrete lysozyme?

Paneth cells

Which of the following cells secrete hydrochloric acid?

Parietal cells

Which of the following is a contribution of the digestive system to the muscular system?

The liver can convert lactic acid to glucose.

Which of the following is the forerunner of the gastrointestinal tract?

primitive gut

Which of the following processes is the primary function of the villi of the small intestine?

Absorption

Brunner's glands

secrete an alkaline mucus

Which hormone is stimulated by high levels of dietary fat in the small intestine?

Cholecystokinin

Which of the following accessory organs stores bile?

Gallbladder

Which type of hepatitis is spread via fecal contamination of objects such as food, clothing, toys, and eating utensils and is characterized by loss of appetite, malaise, nausea, diarrhea, fever, and chills.

Hepatits A

Which structure regulates the flow of material into the colon?

Ileocecal sphincter

Which of the following pancreatic enzymes digests lipids?

Lipase

Which of the following accessory organs produces a fluid that functions to emulsify dietary fats?

Liver

Which structure is composed of prominent lymphatic nodules that function in the immune response?

MALT

Which layer functions by secreting a lubricating fluid?

Mucosa

Which structure of the stomach allows greater distension for food storage?

Rugae

Which of the following accessory organs produces a fluid to soften food?

Salivary glands

Which of the following is NOT a function of the liver? Protein metabolism Storage of vitamins Storage of bilirubin Phagocytosis Conversion of carbohydrates

Storage of bilirubin

How many stages of deglutition are there?

3

Which of the following is NOT a change in the digestive system associated with aging? Decreased secretory mechanisms Decreased motility of the digestive organs Loss of strength and tone of the muscular tissue Changes in neurosensory feedback regarding enzyme and hormone release All of these are age related changes in the digestive system

All of these are age related changes in the digestive system

Why do emotions such as anger or fear slow digestion?

Because they stimulate the sympathetic nerves that supply the GI tract

Which of following processes is the primary function of the mouth?

Ingestion

Which portion of the peritoneum is largely responsible for carrying blood and lymph vessels to the intestines?

Mesocolon

Explain why food does not normally go up into your nasal cavity or down into your lungs when you swallow-even if you are standing on your head when you swallow.

Presence of food in the oropharynx stimulates the deglutition center in the medulla and pons to move the soft palate and uvula upward to close off the nasopharynx, thus keeping food out of the nasal cavity. At the same time, the larynx rises and the epiglottis moves down and back to seal off the larynx, which is further closed by the vocal cords, thus keeping food from entering the lower respiratory tract.

Which of the following is NOT a primary function of the large intestine? Feces formation Absorption Mechanical digestion Regulation of blood glucose Chemical digestion

Regulation of blood glucose