Large blood vessels and lymphatics are found in the A) mucosa. B) submucosa. C)

Question

Large blood vessels and lymphatics are found in the A) mucosa. B) submucosa. C) muscularis. D) adventitia. E) serosa. A disease that attacks and disables the myenteric plexus would A) increase intestinal motility. B) decrease intestinal motility C) increase gastric secretion. D) decrease gastric secretion. Parietal cells secrete A) pepsinogen B) gastrin. C) mucus. D) hydrochloric acid. E) enteropept tidase. All of the following are true of the lining of the stomach except that it A) has a simple columnar epithelium. B) is covered by a thick, viscous mucus. C) is constantly being replaced. D) contains gastric pits. E) recycles bile Match the gastric phase on the left (-3) with the correct description on the right (4-6): 1. intestinal phase 2. gastric phase 3. cephalic phase 4. prepares stomach for arrival of food S. stomach empties and decreases secretions 6. stomach secretes juice and mixes food into chyme A) I and 4; 2 and S: 3 and 6 B) 1 and 6; 2 and 4; 3 and 5 C) I and 5;:2 and 4; 3 and 6 D) 1 and 6; 2 and 5; 3 and 4 E) 1 and 5: 2 and 6: 3 and 4 An obstruction of the bile duct often results in A) undigested fat in the feces. B) a decrease in production of pancreatic juice. C) inability to digest protein. D) cirrhosis of the liver. E) hepatitis. A surgical procedure to promote rapid weight loss is removal of most of the A) pancreas. B) liver. C) duodenum. D) jejunum. E) ileum. Motility in the small intestines is controlled in part by all of the following except A) VIP. B) motilin., C) vagus nerve. D) myenterie reflexes. E) gastroenteric reflexes Sucrose is hydrolyzed by sucrase into glucose and A) glucose. B) lactose. C) fructose. D) maltose. E) galactose. Chyme in the duodenum stimulates the secretion of what hormones in the digestive tract? (Fig 24-23) A) Gastrin and leptin B) VIP and GIPC) Gastrin and GIP D) Leptin and Ghrelin E) GIP, VIP, CCK, and secretin Complexes of fatty acids, monoglycerides, and bile salts are called 1) chylomicrons. C) vesicles. D) micelles. E) varicosities.

Explanation / Answer

1) b) submucosa

Lies below mucosal layer

It is a layer of areolar connective tissue

2)b) decreases intestinal motility

Myenteric plexus is the major nerve supply to the the GI tract

It control GI tract motility

3)D)hydrochloric acid

Parietal cells are also called oxyntic cells

These are epithelial cells located in the gastric glands lining the stomach

4)E) recycles bile

Lining of the stomach doesn't recycle bile

Recycling bile is done by entero hepatic circulation

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