Summary NR 324 Adult Health I Final Exam Review.pdf

GI tract Highlights: Mouth to Anus; ● Mouth: mastication and breakdown of starches by salivary amylase ● Pharyn and Esophagus: During swallowing, epiglottis closes oI laryn ; Upper ⅓ of esophagus is skeletal muscle and distal ⅔ is smooth muscle, LES ● Stomach: churning and mi ing food; intrinsic factors for B12 absorption; very little absorption happens; HCL acid makes gastric juices acidic 1.5-3.5, Pyloric sphincter to Duodenum ● Small Intestines: Duodenum, Jejunum, and Ileum; Main function is digestion and absorption; ileocecal valve to colon ● Large Intestines: water and electrolyte absorption; forms feces 1. Crohn’s Disease- ERIN ● Disease Highlights: Form of Inflammatory Bowel Disease (IBD) that can be found in any segment of the GI tract; Highest risk factor is FH ; Autoimmune disease where the pt’s intestinal tract is attacked causing tissue destruction; Environmental risk factors are smoking, diet (high fat), and stress; Using NSAIDs, antibiotics, oral contraceptives also increase risks