Deck 10: The Gastrointestinal System

Question 1

Hiatal hernias may be caused by all of the following except:

A) Exogenous acids in food
B) Smoking
C) Caffeine
D) Heartburn in pregnancy
E) Reflux of gastric juice

Answer 1

Exogenous acids in food

Question 2

Dental caries begin with the formation of:

A) Pockets of periodontal inflammation
B) Bacterial plaques on the surface of the tooth
C) Periapical granuloma
D) Periapical abscess
E) Radicular cyst

Answer 2

Bacterial plaques on the surface of the tooth

Question 3

Carcinoma of the oral cavity presenting as a white,slightly elevated plaque is clinically described as:

A) Leukoplakia
B) Erythroplakia
C) Ulcer
D) Crater
E) Nodule

Answer 3

Leukoplakia

Question 4

The best serologic marker of carcinoma of the colon is:

A) Alpha-fetoprotein
B) Carcinoembryonic antigen
C) Chorionic gonadotropin
D) Alkaline phosphatase
E) Acid phosphatase

Question 5

Most pedunculated colonic neoplastic polyps are classified as:

A) Hyperplastic polyp
B) Juvenile polyp
C) Inflammatory polyp
D) Tubular adenoma
E) Villous adenoma

Question 6

Most malignant tumors of the esophagus are histologically classified as:

A) Adenocarcinoma
B) Transitional cell carcinoma
C) Small-cell carcinoma
D) Squamous cell carcinoma
E) Sarcoma

Question 7

Genetic predisposition to colon cancer is inherited as an autosomal dominant trait in:

A) Hirschsprung's disease
B) Familial adenomatous polyposis coli
C) Peutz-Jeghers syndrome
D) Colonic diverticulosis
E) Ulcerative colitis

Question 8

Bacteriologically sterile peritonitis is a complication of:

A) Ruptured gastric ulcer
B) Gangrene of the large intestine
C) Gonococcal salpingitis
D) Acute pancreatitis
E) Acute appendicitis

Question 9

Crypt abscesses,serpiginous ulcerations,and inflammatory polyps of the large intestine are typical features of:

A) Diverticulosis coli
B) Crohn's disease
C) Ulcerative colitis
D) Pseudomembranous colitis
E) Cholera

Question 10

Which of these diseases causing malabsorption is associated with diagnostic pathologic changes in the intestine?

A) Diabetes
B) Radiation enteritis
C) Pancreatic insufficiency
D) Celiac sprue
E) Intestinal bacterial overgrowth

Question 11

The changes typical of Crohn's disease are found most often in the:

A) Anus
B) Rectum
C) Sigmoid colon
D) Transverse colon
E) Terminal ileum

Question 12

The most common viral cause of sialadenitis is:

A) Herpesvirus
B) Measles virus
C) Mumps virus
D) Cytomegalovirus
E) Epstein-Barr virus

Question 13

All of the following are common symptoms or complications of duodenal ulcer except:

A) Hematemesis
B) Melena
C) Vomiting
D) Epigastric pain
E) Carcinoma

Question 14

Obstructive ileus may be caused by all of the following except:

A) Gallstones
B) Fecaliths
C) Volvulus
D) Incarceration of intestinal loops in a hernia sac
E) Spinal cord injury

Question 15

Diverticula of the intestine are most often located in the:

A) Jejunum
B) Ileum
C) Cecum
D) Transverse colon
E) Sigmoid colon

Question 16

Approximately 50% of all carcinomas of the intestine develop in the:

A) Rectosigmoid area
B) Descending colon
C) Transverse colon
D) Ascending colon
E) Small intestine

Question 17

Which of the following is a life-threatening condition that occurs in the lower intestinal tract?

A) Ulcerative colitis
B) Gangrenous appendicitis
C) Rotavirus
D) Giardia lamblia
E) Esophageal varices

Question 18

The most common tumor of the salivary glands is:

A) Pleomorphic adenoma
B) Adenoid cystic carcinoma
C) Mucoepidermoid carcinoma
D) Adenocarcinoma of the major ducts
E) Squamous cell carcinoma

Question 19

The most common cause of pseudomembranous colitis is:

A) Shigella
B) Clostridium difficile
C) Salmonella
D) Giardia lamblia
E) Acid phosphatase

Question 20

Atrophic gastritis is characterized by:

A) Xerostomia
B) Achlorhydria
C) Gastric hyperacidity
D) Achalasia
E) Reflux esophagitis