Overview Modalities, Oral &
Esophageal Disorders Questions and
All Actual Answers.
GI -
Primary function - Answer -Breakdown of food for digestion
-Absorption of nutrients into bloodstream
-Elimination of undigested food & waste products
GI -
Closed system - Answer Mouth -> Esophagus -> Stomach -> Small & Large Intestines ->
Rectum -> Anus
Includes accessory organs (liver, gallbladder & pancreas)
-*Starches start in your mouth
-Saliva helps lubricate food
-Pepsin: starts protein breakdown in stomach
-Pepsin & starches mixed with hydrochloric acid produces chyme
-Takes 1-2 hrs hrs for stomach to do its job
-Pyloric sphincter divides the stomach & small intestine
-The GI system is innervated by Sympathetic & Parasympathetic*
GI -
Portal Venous System - Answer Superior Mesenteric, Inferior Mesenteric, Gastric, Splenic,
Cystic(PROVIDE BLOOD TO LIVER)
Small intestine has 3 parts: - Answer Duodenum, jejunum, ileum
95% of nutrients are absorbed in the ____________ - Answer Duodenum
__________ is where carbs & proteins are absorbed - Answer Jejunum
last largest part of the small intestine - Answer ileum
, Large intestine is jus_____ - Answer Water & minerals
_____________ starts secreting bile to breaking down fats - Answer Gallbladder
_____________ releases amylase & lipase to breakdown starches - Answer Pancreas
Pancreas also secretes a bicarb - Answer Neutralizing acid enzyme to buffer the acidity of the
chyme
Small intestine has finger like projections called villi: - Answer Sucks up nutrients & minerals
Main purpose of ileum is: - Answer Bile salts & B12
90% of digestion occurs in the _______ intestine - Answer Small
___% of digestion occurs in the stomach & colon - Answer 10%
Bacteria in colon make biotin & vitamin ___ - Answer K
___-___ hrs for food to get through the stomach & small intestine - Answer 6-8
Portal venous system feeds: - Answer Liver, intestines, stomach, spleen
GI disorders most often deal with function & motility: - Answer -Aging has minimal effect on
GI function
GI disorders most often deal with FUNCTION & MOTILITY
Dysphagia, Anorexia, Dyspepsia, Disorders of Colonic function
-Difficulty chewing & swallowing
-Reflux & Heartburn
-Food intolerances, Malabsorption, Decreased B12 absorption
-Decreased motility & transit time (indigestion & constipation)
-Decreased absorption of nutrients (dextrose, fats, calcium, iron)
-Fecal incontinence (duller nerve impulses in rectal area)
Dyspepsia - Answer Heartburn