Description : Which of the following is not produced by the brush border cells of the intestinal mucosa.
Last Answer : Which of the following is not produced by the brush border cells of the intestinal mucosa. A. dipeptidases B. nucleosidases C. lipases D. staeapsin
Description : Innermost layer of mucosa is made up of culumnar epithelium except `:`
Last Answer : Innermost layer of mucosa is made up of culumnar epithelium except `:` A. Oesophagus B. Duodenum C. Intestine D. Stomach
Description : Perietal cells of mucosa in stomach secretes `:`
Last Answer : Perietal cells of mucosa in stomach secretes `:` A. Mucus B. Pepsin C. HCl D. All of the above
Description : Fructose is abosrbed into the blood through mucosa cells of intestine by process called
Last Answer : Fructose is abosrbed into the blood through mucosa cells of intestine by process called A. active ... C. simple diffusion D. co-transport mechanism
Description : Dietary purines are catabolised in (A) Liver (B) Kidneys (C) Intesitnal mucosa (D) All of these
Last Answer : Answer : C
Description : All the following statements about ceruloplasmin are correct except (A) It is a copper-containing protein (B) It possesses oxidase activity (C) It is synthesised in intestinal mucosa (D) Its plasma level is decreased inWilson’s disease
Description : Iron absorption is hampered by (A) In achlorhydria (B) When ferritin content of intestinal mucosa is low (C) When saturation of plasma transferring is low (D) When erythropoietic activity is increased
Last Answer : Answer : A
Description : Ferritin is present in (A) Intestinal mucosa (B) Liver (C) Spleen (D) All of these
Last Answer : Answer : D
Description : Calcitriol facilitates calcium absorption by increasing the synthesis of the following in intestinal mucosa: (A) Calcium Binding Protein (B) Alkaline Phosphatase (C) Calcium-dependent ATPase (D) All of these
Description : Alkaline phosphatase is present in (A) Liver (B) Bones (C) Intestinal mucosa (D) All of these
Description : The harmone acting directly on intestinal mucosa and stimulating glucose absorption is (A) Insulin (B) Glucagon (C) Thyroxine (D) Vasopressin
Description : 25-Hydroxylation of vitamin D occurs in (A) Skin (B) Liver (C) Kidneys (D) Intestinal mucosa
Last Answer : Answer : B
Description : Deficiency of vitamin B12 can occur because of (A) Decreased intake of vitamin B12 (B) Atrophy of gastric mucosa (C) Intestinal malabsorption (D) All of these
Description : Retinal is reduced to retinol in intestinal mucosa by a specific retinaldehyde reductase utilising (A) NADPH + H+ (B) FAD (C) NAD (D) NADH + H+
Description : More than half of the protein of the liver and intestinal mucosa are broken down and resynthesised in (A) 10 days (B) 12 days (C) 15 days (D) 18 days
Description : All of the following statements about cholecystokinin pancreozymin are true except (A) It is secreted by mucosa of small intestine (B) It stimulates secretion of pancreatic juice rich in enzymes (C) It stimulates contraction of gall bladder (D) It inhibits gastric motility
Description : Answer: e The role of nutritional support in the cancer patient remains an important component of overall therapy. Preoperative nutritional support should be given only to those patients who ... of bowel rest; this atrophy is not reversed by currently available total parenteral nutrition solutions
Last Answer : Which of the following hormones can be expected to be released as part of the stress response? a. Antidiuretic hormone (ADH) b. Aldosterone c. Insulin d. Epinephrine nswer: a, b, d ... This hormone has the exact opposite effect of insulin, which promotes glucose storage and uptake by the cells
Description : Bromhexine acts by (a) Inhibiting cough center (b) Irritating gastric mucosa and reflexly increasing bronchial secretion (c) Depolymerizing mucopolysaccharides present (d) Desensitizing stretch receptors in the lungs
Last Answer : Ans: C
Description : Which of the following expectorants acts both directly on the airway mucosa as well as reflexly ? (a) Potassium iodide (b) Guaiphenesin (c) Terpin hydrate (d) Bromhexine
Last Answer : Ans: A
Description : The most likely complication of prolonged use of nasal decongestant drops is (a) Atrophic rhinitis (b) Hypertrophy of nasal mucosa (c) Naso-pharyngeal moniliasis (d) Blockage of Eustachian tubes
Description : Which of the following will result from blockade of H2 receptors? (a) Decreased camp in cardiac muscle (b) Increased camp in cardiac muscle (c) Decreased IP3 in gastric mucosa (d) Increased IP3 in gastric mucosa (e) Increased IP3 in smooth muscle
Description : The distinctive feature of the isoenzyme cyclooxygenase-2 is (a) It is not inhibited by indomethacin (b) It is inducible (c) It generates cytoprotective prostagladins in gastric mucosa (d) It is found only in foetal tissues
Last Answer : Ans: B
Description : How is the gastric mucosa protected from the acid pH of the stomach?
Last Answer : The gastric epithelium is mucus secretory, i.e., it produces mucus. The mucus covers the stomach wall preventing corrosion by the gastric juice.
Description : There are 6 major salivary glands and they are located one in each parotid gland, two beneath the mandibles (submandibular) and two in the base of the tongue (sublingual). More than 700 other minor salivary glands exist dispersed on the lip mucosa, gingiva, palate and pharynx.
Last Answer : What is the approximate pH of the salivary secretion? Is it an acid or basic fluid? What are the main functions of saliva?
Description : From the internal surface to the external surface, the digestive tube wall is made of mucosa (epithelial tissue responsible for the intestinal absorption), submucosa (connective tissue beneath the ... within the abdominal cavity. Digestion System - Image Diversity: histology of the digestive tube
Last Answer : What is the location of the salivary glands in humans?
Description : Adherent mucoid alkaline substance covering the inner lining of stomach is to - (1) digest starch (2) act against bacteria (3) prevent the action of pepsin of mucosa (4) prevent viral infection
Last Answer : (3) prevent the action of pepsin of mucosa Explanation: The continuous adherent mucus layer is also a barrier to luminal pepsin, thereby protecting the underlying mucosa from proteolytic ... support surface neutralization of acid and act as a protective physical barrier against luminal pepsin.
Description : Lesions of avian pox comprise of A A. raised confluent blackish lesions on the comb B. ulcers on the intestinal mucosa C. pustules on the mucosa of proventriculus D. None of these
Last Answer : raised confluent blackish lesions on the comb
Description : The active form of Entamoeba histolytica feeds upon (a) food in intestine (b) blood only (c) erythrocytes, mucosa and submucosa of colon (d) mucosa and submucosa of colon only
Last Answer : (c) erythrocytes, mucosa and submucosa of colon
Description : Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions ... amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.
Last Answer : (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na
Description : Fructose is absorbed into the blood through mucosa cells of intestine by the process called (a) active transport (b) facilitated transport (c) simple diffusion (d) co-transport mechanism.
Last Answer : (b) facilitated transport
Description : What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor? (a) In the absence of HCl secretion, inactive pepsinogen is not converted into the active ... c) Gastric juice will be deficient in chymosin. (d) Gastric juice will be deficient in pepsinogen.
Last Answer : (a) In the absence of HCl secretion, inactive pepsinogen is not converted into the active enzyme pepsin.
Description : Which of the following statements is not correct? (a) Oxyntic cells are present in the mucosa of stomach and secrete HCl. (b) Acini are present in the pancreas and secrete carboxypeptidase. (c ... and secrete pepsinogen. (d) Goblet cells are present in the mucosa of intestine and secrete mucus
Last Answer : (c) Brunner’s glands are present in the submucosa of stomach and secrete pepsinogen.
Description : Brunner’s glands occur in (a) submucosa of duodenum (b) submucosa of stomach (c) mucosa of oesophagus (d) mucosa of ileum.
Last Answer : (a) submucosa of duodenum
Description : Which of the following is a barrier to entry of pathogens? a. the skin b. tears c. nasal mucosa d. A-C are correct
Last Answer : d. A-C are correct
Description : Which type of diarrhea is caused by increased production and secretion of water and electrolyes by the intestinal mucosa into the intestinal lumen? a) Secretory diarrhea Secretory diarrhea is usually ... bowel. d) Diarrheal disease The most common cause of diarrheal disease is contaminated food.
Last Answer : a) Secretory diarrhea Secretory diarrhea is usually high volume diarrhea and is caused by increased production and secretion of water and electrolytes by the intestinal mucosa into the intestinal lumen.
Description : Crohn's disease is a condition of malabsorption caused by a) inflammation of all layers of intestinal mucosa. Crohn's disease is also known as regional enteritis and can occur ... to lactose intolerance. d) gastric resection. Postoperative malabsorption occurs after gastric or intestinal resection.
Last Answer : a) inflammation of all layers of intestinal mucosa. Crohn’s disease is also known as regional enteritis and can occur anywhere along the GI tract, but most commonly at the distal ileum and in the colon.
Description : Decrease in absorption of which of the following vitamins in the geriatric patient results in pernicious anemia? a) B12 Vitamin B12 requires the intrinsic factor secreted by the gastric mucosa for ... results in an inability to absorb calcium. d) B6 Vitamin B6 affects neuromuscular function.
Last Answer : a) B12 Vitamin B12 requires the intrinsic factor secreted by the gastric mucosa for absorption.
Description : Irritation of the lips associated with scaling, crust formation, and fissures is termed a) leukoplakia. Leukoplakia is characterized by white patches, usually on the buccal mucosa. b) lichen ... a reddened circumscribed lesion that ulcerates and becomes crusted and is a primary lesion of syphilis.
Last Answer : a) leukoplakia. Leukoplakia is characterized by white patches, usually on the buccal mucosa.
Description : Which of the following terms is used to describe stone formation in a salivary gland, usually the submandibular gland? a) Sialolithiasis Salivary stones are formed mainly from calcium phosphate. b ... of the salivary glands. d) Stomatitis Stomatitis refers to inflammation of the oral mucosa.
Last Answer : a) Sialolithiasis Salivary stones are formed mainly from calcium phosphate.
Description : Which of the following is an expansile lesion of the oral mucosa, A. Keratocyte more expansion B. Radicular cyst C. Cementoma
Last Answer : B. Radicular cyst
Description : What is TRUE in regard to Basal Cell Carcinoma A. Metastasis is common B. Erodes bone C. More common in oriental races D. Cannot occur in oral mucosa according to definition
Last Answer : D. Cannot occur in oral mucosa according to definition
Description : A patient has painful lesions on her buccal mucosa. Biopsy report shows acantholysis and supra basilare, your diagnosis is: A. Pemphigus vulgaris B. Bulla lichen planus C. Erythema multiform D. Systemic lupus erythematosus
Last Answer : A. Pemphigus vulgaris
Description : Purplish lesions on the buccal mucosa that have been there since birth; the diagnosis is: A. Haemangioma B. Erythema C. Naevus
Last Answer : A. Haemangioma
Description : In regard to Plummer-Vincent syndrome or “Paterson and Kelly syndrome”: A. Iron deficiency is a feature B. Atrophic oral and gastric mucosa C. Dysphagia and angular cheilitis D. Predisposing oral cancer E. All of the above
Last Answer : E. All of the above
Description : Oral mucosa and skin pigmentation occurs in patient with:** A. Diabetes mellitus B. Addison’s disease C. Multiple myeloma D. Squamous cell carcinoma E. Bright’s disease F. Cushing’s disease
Last Answer : B. Addison’s disease
Description : Kaposi’s sarcoma: A. Seen on buccal mucosa in HIV as purple lesion B. Seen on palate of most HIV patients C. Should be biopsy
Last Answer : B. Seen on palate of most HIV patients
Description : What is not correct about Long Buccal Nerve:** A. Passes through two heads of pterygoids muscles B. Supplies mucosa over lower and upper molars C. Supplies the buccinator muscle D. Supplies skin over buccinator
Last Answer : C. Supplies the buccinator muscle
Description : During manual palpation, the mucosa is thin in: I. Midline of the palate II. Mylohyoid region III. Over torus palatinus A. I, II and III B. None of the above C. I and II D. II and III
Last Answer : A. I, II and III
Description : An old male presents complaining of having numerous white lesions in the oral cavity within past few days. Prior to this the family physician prescribed chlorite tetracycline for an upper respiratory infection, ... plaques on the lip mucosa, buccal mucosa and the tongue. MOST LIKELY to be:
Last Answer : Moniliasis (Which is candidiasis)
Description : A patient is complaining of an open sore on the buccal mucosa. The lesion is painless, ulcerated, has indurated margins, 1.5 cm in diameter, covered by greyish-white exudate, enlarged lymph nodes and tender, negative tuberculin test and positive serology. The diagnosis is
Last Answer : Chancre /Primary lesion of syphilis