Digestive System - Mcat 50 Correctly Answered Questions Latest Update

Mucous Cells {Ans: Location: Stomach Secrete Mucus to lubricate stomach wall and protect epithelial lining from low pH}Pancreas' Role: {Ans: 1. Secrete Bicarbonate Ion (intended to raise pH in duodenum) 2. exocrine gland - releasing: - trypsin - chymotrypsin - pancreatic amylase - lipase - ribonuclease - deoxyribonuclease (all emzymes are released as zymogens, activated trypsin then actives all other enzymes)}Name the parts in order of Small Intestine {Ans: 1. duodenum 2. Jejunum 3. Ileum}Where does digestion begin? {Ans: in mouth with AMYLASE}Brush Border {Ans: Location: Small Intestine Name refering to fuzzy-looking covering of microvilli on apical (lumen side) side of small intestine contains membrane bound digestive enzymes}Goblet Cells {Ans: Location: Small intestine Purpose: secrete mucus to lubricate small intestine and protect brush border from mechanical and chemical damage}