Medications and Dry Mouth Effects

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What type of glands secrete digestive enzymes?

Endocrine glands
Exocrine glands (correct)
Paracrine glands
Autocrine glands

Which of the following is NOT a location where digestive enzymes are secreted?

Liver (correct)
Salivary glands
Small intestine
Pancreas

What is the effect of alkali on pepsin?

Converts it into pepsinogen
Protects it
Destroys it (correct)
Has no effect

What is the precursor of pepsin?

Pepsinogen (B) Signup and view all the answers

What is the primary aspect of gastric function studied in clinical practice?

Acid secretion (A) Signup and view all the answers

Which of the following medications is LEAST likely to cause or exacerbate xerostomia?

Antacids (C) Signup and view all the answers

What is the primary function of lipases in gastric digestion?

Splitting fatty acids off fats and oils (D) Signup and view all the answers

Where do amylases primarily break down carbohydrates in the human digestive system?

Oral cavity (A) Signup and view all the answers

What is the primary consequence of chronic xerostomia on patients' lives?

Drastic alteration of daily life, making eating impossible (D) Signup and view all the answers

What type of enzyme breaks down nucleic acids into nucleotides?

Nucleases (B) Signup and view all the answers

Which of the following is NOT a primary site of digestion in the human digestive system?

Liver (C) Signup and view all the answers

What is the primary function of the stomach in the initiation of digestion?

Initiation of peptic hydrolysis of dietary proteins (C) Signup and view all the answers

Which of the following is NOT a function of the stomach's secreted products?

Initiation of hydrolysis of dietary carbohydrates (D) Signup and view all the answers

What is the primary purpose of assessing gastric acid secretion in drug development?

To assess the bioavailability of novel compounds (B) Signup and view all the answers

What is the role of intrinsic factor in the stomach's secretions?

Binding of vitamin B12 for subsequent ileal uptake (C) Signup and view all the answers

What is the primary reason for assessing gastric motility in drug development?

To assess the influence of drugs on gastric function (C) Signup and view all the answers

What is the purpose of pH-metry in the treatment of peptic ulcer disease?

To determine the optimal dose of an acid suppressant to heal mucosal damage (A) Signup and view all the answers

What is the primary cause of delayed gastric emptying in patients with diabetes mellitus?

Disturbed gastric myoelectric activity (A) Signup and view all the answers

What is the primary function of pancreatic amylase in the small intestine?

Digestion of carbohydrates (D) Signup and view all the answers

What hormone stimulates the release of pancreatic enzymes into the small intestine?

Cholecystokinin (A) Signup and view all the answers

What is the end product of protein digestion in the small intestine?

Peptides and amino acids (B) Signup and view all the answers

What is the primary role of bicarbonate released from the pancreas in the small intestine?

Neutralization of stomach acid (C) Signup and view all the answers

What is the primary site of chemical digestion in the body?

Small intestine (C) Signup and view all the answers

What is the primary function of bile salts in the digestion of lipids?

Emulsification and activation of pancreatic lipase (C) Signup and view all the answers

What is the primary difference between the action of trypsin and chymotrypsin?

Trypsin breaks down proteins into peptides, while chymotrypsin breaks down peptides into amino acids (C) Signup and view all the answers

Which of the following enzymes is responsible for breaking down oligosaccharides into simple sugars?

Dextrinase and glucoamylase (C) Signup and view all the answers

What is the primary role of pancreatic lipase in the digestion of lipids?

Breaking down triglycerides into monoglycerides and fatty acids (B) Signup and view all the answers

What is the relationship between the activity of pancreatic lipase and bile salts?

Bile salts aid the activity of pancreatic lipase by emulsifying triglycerides (C) Signup and view all the answers

What is the primary difference between the action of aminopeptidase and dipeptidase?

Aminopeptidase breaks down peptides into amino acids, while dipeptidase breaks down dipeptides into amino acids (B) Signup and view all the answers