E. 29 Which of the following statements about vitamin B12 is false? A. It is watcr soluble B. Lack of it causes pernicious anaemia C. Intrinsic factor is needed for its absorption D. Damage to the gastric mucosa may lead to its deficiency F. It is primarily absorbed in the jejunum

Uda was brought to the clinic with yellowing of the skin over the trunk and extremities along with dark yellow urine. her mother was advised that this could be due to an overdose of which vitamin(A,C,D or K)?

Brunner's glands secrete an alkaline product that helps achieve optimal pH for the activity of pancreatic enzymes. Where are these glands located? A. At the base of villi throughout the small intestine B. In the epithelium of the ampulla of Vater C. In the mucosa and submucosa of the jejunum D. In the submucosa of the duodenum E. In the submucosa of the ileum

53. A 45-year-old man comes to the emergency department because of increasingly frequent episodes of epigastric pain during the past month. For the past two nights, the pain has been accompanied by nausea and vomiting. He has been self-medicating with aspirin for arthritis. Upper endoscopy shows evidence of a pyloric channel ulcer. Which of the following types of gastric cells normally protects against this patient's condition? A) Chief cell B) Enterocyte C) M cell D) Mast cell E) Paneth cell F) Parietal cell G) Surface mucous cell