Chapter 17- Digestive System
Poor vision
Vitamin A
8.Gallstones are usually composed of
1.cholesterol.
13.Enlarged blood vessels of the anal columns are called
1.hemorrhoids.
12.The mechanical breakup of food particles in the mouth is called
1.mastication.
9.Activities of the digestive system generally increase when it is stimulated by
1.parasympathetic impulses
23.What stimulates the secretion of hydrochloric acid (HCl) in the stomach?
All is correct a.the smell of food b.the taste of food c.the distention of the stomach
21.Which of the following is true about bile?
Bile is produced by the liver.
24.Secretin
Peptide hormone that stimulates the release of pancreatic juice and inhibits stomach secretions
22.Matthew takes a drug that inhibits the production of HCl in the stomach to ease the symptoms of a gastric ulcer. If he takes it for a long time, digestion of which nutrient would be affected the most?
Proteins (gastric juices produces PEPSIN)
From external to internal, what is the correct order of layers of the stomach?
Serosa, muscularis, submucosa, mucosa
Which two fetal remnants are found on the liver?
The round ligament and the ligamentum venosum
Weakened bones
Vitamin D
Impaired blood clotting
Vitamin K
Slower healing and decrease immunity
Zinc
14.Pancreatic digestive secretions are regulated by
cholecystokinin.
26.When chyme enters the duodenum,
gastric secretions DO NOT increase. (The acidic chyme in the duodenum stimulates hormonal and neural mechanisms that inhibit gastric secretions).
25.What stimulates the release of secretin from the duodenum?
hydrochloric acid in chyme. (to inhibit stomach secretions of acidic juices)
3.Portal Triad - A portal triad consists of which three elements?
i.Branches of a hepatic artery, hepatic portal vein, and bile duct
Gastrin, which stomach cells secrete,
increases secretion by the gastric glands
16.During the defecation reflex, the diaphragm
is lowered
18.The liver forms glucose from
noncarbohydrates
17.Peristalsis occurs in the digestive tract from the
pharynx to the anus.
20.The greater omentum is composed of
the peritoneal membrane.
7.The root canal of a tooth contains
.4.blood vessels and nerves.
19.Which of the following is the correct sequence for the digestion and absorption of lipids?
1. Formation of chylomicrons2. Emulsification by bile3. Dissolved in the epithelial cell membrane4. Hydrolysis by pancreatic lipase5. Movement into lacteal ducts
11.VLDL molecules are produced in which organ?
1.Liver
4.Gastric secretion during the intestinal phase is inhibited by the...
1.Presence of lipids or low pH i.(Gastric secretion can be inhibited by either the presence of lipids or a low pH (less than 2.0)
10.One of the functions of the large intestine is to
1.absorb ingested water
5.Over-the-counter antacids usually include
1.agents that lower the pH in the stomach.2..
15.Because of their location, swollen palatine tonsils may interfere with
1.both breathing and swallowing.
