Quiz: Exams — AUA MCQ

1-Regarding midgut loop, one statement is CORRECT:

A A. Caecal rudiment arises at the cranial limb B B.During the development,the caecum is subhepatic then it descends C C.Left colic flexure is a derivative of the loop D D. The loop is supplied by inferior mesenteric artery

2-One of the following areas of the liver is covered by peritoneum:

A A.Bare area B B.Fossa for gall bladder C C.Gastic impression D D.Groove for inferior vena cava

3.One of the following structures NOT shares in the stomach bed

A A.Left colic flexure B B.Left kidney C C.Pancreas D D.Spleen

3.One of the following structures NOT shares in the stomach bed

A A.Left colic flexure B B.Left kidney C C.Pancreas D D.Spleen

4-Regarding development of hindgut, one statements is CORRECT:

A A.Anal canal is completely endodermal in origin B B.Failure of rupture of anal membrane leads to imperforate anus C C.Lower part of anal canal is a mesodermal pit called proctodeum D D. Upper part of anal canal develops from cloaca

5.One of the following structures NOT lies within the parotid gland

A A.External carotid artery B B.Facial artery C C.Facial nerve D D. parotid lymph nodes

6-Rotation of the stomach leads to the following results,EXCEPT:

A A. The ventral border becomes right border B B.The dorsal border becomes left border C c. the right surface becomes posterior surface D D. The dorsal mesogastrium becomes the lesser omentum

7-Regarding the duodenum, select the CORRECT answer:

A A.It is supplied by both coeliac & superior mesenteric arteries B B. It surrounds head & neck of pancreas C c. Its 1st part is the longest one D D.Its 2nd part extends from L2-L4

8-Regarding the intestine, select the CORRECT answer:

A A.Anal canal is continuous with the rectum opposite tip of coccyx B B.Descending colon joins transverse colon at the hepatic flexure C C.Mesenteric fat is less dense in the ileum D D. The jejunum is the longest part of small intestine

9.About Swallowing is a reflex which of the following is NOT true

A a)Has its reflex centres in the cervical segments of the spinal cord. B b) Includes inhibition of respiration. C c) Is initiated by a voluntary act. D d) Is dependent on intrinsic nerve networks in the oesophagus.

10. In the stomach

A a) pH rarely falls below 4.0. B b) Pepsinogen is converted to pepsin by hydrochloric acid. C c)Ferrous iron is reduced to ferric iron by hydrochloric acid. D d) Acid secretion is inhibited by pentagastrin.

11-Uncinate process of pancreas is crossed anteriorly by:

A A. Abdominal aorta B B.Common bile duct C C.Inferior mesenteric vessels D D.Superior mesenteric vessels

12-Concerning development of the lips & palate,one is CORRECT:

A A. Median cleft upper lipis failure of philtrum formation B B.Palatine processes of maxilla fuse in posteroanterior direction C C.Primary palate is an anterior extension of secondary palate D D. Secondary palate develops from maxillary processes of palatine bone

13. The normally innervated stomach all the following are true EXCEPT

A a) Is stimulated to secrete gastric juice when food is chewed,even if it is not swallowed. B b) Cannot secrete HCI when its H1 histamine receptors are blocked. C c) And the denervated stomach can secrete gastric juice after a meal is ingested. D d) Empties more quickly than the denervated stomach

14. Vomiting

A a) Is caused by violent rhythmic contractions of gut smooth muscle. B b)Is coordinated by a vomiting centre in the mid brain C c)Of green fluid suggests that duodenal contents are decreased. D d) Is occurring by forced expiratory efforts by skeletal muscles in the presence of a closed glottis and pylorus are responsible for compressing the stomach

15. The stomach

A a) Is responsible for absorbing about 10 per cent of the ingested food. B b) Carbonic anhydrase absent in its mucosal cells. C c) Peristaltic contractions start from the pyloric region. D D) Relaxes when food is ingested,this 'receptive relaxation' allows the stomach to store large volumes of food without discomfort.

16-The bile salts are

A a-hydrophobic B b-synthesized in the gut C c-hydrophilic D d-convert dietary fat to suspension

17. About Secretion of gastric juice which of the following is NOT true

A a) Increases when food stimulates mucosal cells in the pyloric region B b) Is associated with a decrease in the pH of venous blood as bicarbonate enters the circulation in the 'alkaline tide'.. C c) In response to food is reduced after vagotomy. D d) Is not essential for protein digestion.

18.Secretion of saliva decreases when

A a) Touch receptors in the mouth are stimulated. B b) The mouth is flushed with acid fluids with a pH of about 4. C c)Dehydration occurs D d) Vomiting is imminent.

20. About Gastric juice all the following are true EXCEPT

A a) Is secreted when the vagus nerves are stimulated. B b) After vagotomy, food must enter the stomach to stimulate gastric secretions C c) Inactivates the digestive enzymes secreted with saliva. D d) Does not digest the gastric mucosa because it is protected by a pepsin inactivator

21. Peptic ulcer pain is typically relieved by all the following EXCEPT

A a) Raising the pH of the fluid bathing the ulcer. B b) Oral administration of sodium bicarbonate. C c) Oral administration of a non-absorbable antacid. D d) A drug which interferes with the action of acetylcholinesterase.

22-The main route for digestion of triacylglycerols involves

A a-hydrolysis to fatty acids B b-hydrolysis to fatty acids and glycerols C c-hydrolysis to fatty acids and 1-monoacylglycerol D d-hydrolysis to fatty acids and 2-monoacylglycerol

23-Lingual and gastric lipases preferentially hydrolyze fatty acids containing

A a-10-12 carbon atoms B b-16-18 carbon atoms C c-18-20 carbon atom D d-20-22 carbon atoms

24-The following are polysaccharides except

A a-Starch B b-glycogen C c-cellulose D d- sucrose

25.About carbohydrate metabolism

A a-Glucose is not the universal fuel for human cells B b-The major source of carbohydrates is found in fruits only C c-Carbohydrates are not essential to the diet D d-the body can synthesize necessary carbohydrates through glycogenolysis

26-Amylase hydrolyzes starch into the following except

A a-maltose B b-glucose C c-isomaltose D d-maltotriose

1. The following is antacid may produce constipation:

A a) Ranitidine B b) Cimetidine C c) omeprazole D d) Allumonium hydroxide

2.Metronidazole is used in treatment of:

A a) Trichomonas vaginitis B b) Pneumonia C c) Typhoid fever D d) Influenza

3.The most effective antiemetic drug used for management of chemotherapy induced vomiting is;

A a) metoclopramide B b) ondansetron C c) atropine D d) scopolamine

4.Which Hepatitis are transmitted Faeco-Orally:

A a) Hepatitis A.E B b) Hepatitis B and C C c) Hepatitis C and D D d) Hepatitis G

5.Which of the following statement regarding Hepatitis B Immune globulin(HBIG)is not correct:

A a)Hlepatitis B Immune globulin(HBIG)contains high titer of HBSAb B b)b.HBIG is prepared from sera of patients who are recovered from hepatitis B. C c)c.HBIG is used to provide immediate,passive protection to individuals D d) HBIG gives active immunity after repeated injections

5.Which of the following statement regarding Hepatitis B Immune globulin(HBIG)is not correct:

A a)Hlepatitis B Immune globulin(HBIG)contains high titer of HBSAb B b)b.HBIG is prepared from sera of patients who are recovered from hepatitis B. C c)c.HBIG is used to provide immediate,passive protection to individuals D d) HBIG gives active immunity after repeated injections

6. The incubation period of Salmonella food poising is:

A a) 1-8 hours B b) 12-48 hours C c) 18-24 hours D d) 10-30 hours

6. The incubation period of Salmonella food poising is:

A a) 1-8 hours B b) 12-48 hours C c) 18-24 hours D d) 10-30 hours

7. The most common cause of peptic ulcer is

A a) H.pylori infection B b) Smoking C c) NSAID drugs D d) Bleeding

8.As regarding ulcerative colitis disease,one of the following is wrong

A a) Affects caecum and ileum mainly B b) Complicated by colonic carcinoma C c)Causing bleeding per rectum D d) Showed cryptitis and crypt abscess

9. The most common malignant salivary gland tumor in is:

A a) Acinic cell tumour B b) Adenocarcinoma C c)Warthin's Tumor D d) Mucoepidermoid carcinoma

10.Chronic hepatitis does NOT occur in case of infection by

A a)Hepatitis A B b) Hepatitis B C c) Hepatitis C D d) Hepatitis D

11. Cirrhosis is NOT:

A a) chronic liver disease of progressive nature B b) A reversible condition C c) Charactrized by degeneration and regeneration of the liver cells D d) Charactrized by loss of the normal hepatic architecture

12.The most common tumour of the liver is:

A a) Liver cell adcnoma B b) Hepatocellular carcinoma C c)Hepatoblastoma D d) Metastatic tumors

13.The following parasite can be complicated by rectal prolapse

A a) Trichuris trichura B b) Ascaris lumbricoides C c) Ancylostama duodenale D d) Strongyloides stercoralis

14. visceral larva migrans is caused by invasion of the skin by Larvae of:

A a) Dipterous flies B b) Toxocara canis C c) Ancylostoma caninum D d) Hymenolepis nana

15.About Saliva which of the following is true

A a)The different salivary glands have n different composition. B b)Contains enzymes essential for the digestion of carbohydrates C c)Has less than half the ionic caleium level of plasma D d)Has a pH between 5 and 6.

16. About Swallowing is a reflex which of the following is false.

A a)Hus its reflex centers in the cervical segments of the spinal cord. B b) Includes inhibition of respiration. C c) Is initiated by u voluntary act. D d) Is dependent on intrinsic nerve networks in the oesophagus

17. The stomach

A a) Is responsible for ubsorbing about 10 per cent of the ingested food B b) Contains mucosal cells containing high concentrations of carbonic anhydrase. C c) Peristaltic contractions start from the pyloric region. D d)Motility increases when fat enters the duodenum.

18.Vomiting

A a)Is caused by violent rhythmic contractions of gut smooth muscle. B b) Is coordinated by a vomiting centre in the mid brain. C c)Of green fluid suggests that duodenal contents have regurgitated into the stomach. D d)Is more marked in low intestinal obstruction than in high intestinal obstruction.

18.Vomiting

A a)Is caused by violent rhythmic contractions of gut smooth muscle. B b) Is coordinated by a vomiting centre in the mid brain. C c)Of green fluid suggests that duodenal contents have regurgitated into the stomach. D d)Is more marked in low intestinal obstruction than in high intestinal obstruction.

19. Saliva is necessary for the following except

A a)Digestion of food. B b)Normal speech. C c)Antisepsis in the mouth D d) Taste sensation.

20.Gastrin secretion is increased by

A a)acid in the lumen of stomach B b) distension of stomach C c)inereased circulating levels of secretin D d) vagotomy

1.Which cell protects the stomach from gastric HCL?

A a. Chief cells B b.Parietal cells C c. Zymogen cells D d.Mucus cells

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