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DIGESTIVE SYSTEM IS ALSO KNOWN AS:
GI - GASTROINTESTINAL SYSTEM
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ALIMENTARY CANAL
THE CONNECTING CHAIN OF DIGESTIVE ORGANS
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4 PHASES OF DIGESTION
- 1. INGESTION
- 2. DIGESTION
- 3. ABSORPTION
- 4. ELIMINATION
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ORGANS OF THE DIGESTIVE SYSTEMS
- 1. MOUTH
- 2. PHARYNX
- 3. ESOPHAGUS
- 4. STOMACH
- 5. SMALL INTESTINE
- 6. LARGE INTESTINE
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SALIVA IS RELEASED FROM 3 GLANDS
PAROTID, SUBMANDIBULAR AND SUBLINGUAL
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MUMPS IS:
INFLAMMATION OF THE PARTOTID GLAND
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BOLUS
COMBINATION OF MASHED FOOD AND SALIVA
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PERISTALSIS
THE INVOLUNTARY MUSCLE THAT MAINTAINS THE MOVEMENT OF FOOD THROUGH THE BODY
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CARDIAC SPHINCTER
THE CIRCULAR MUSCLE AT THE UPPER OPENING TO THE STOMACH. OPENS TO LET FOOD IN, CLOSES TO KEEP FOOD IN.
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SIZE OF STOMACH
10 INCHES LONG
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HYDROCHLORIC ACID
MIXES INTO THE BOLUS TO BREAK IT DOWN
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PEPTIC ULCER
HYDROCHOLORIC ACID WILL CAUSE THIS, IF ACID IS LEFT IN STOMACH TOO LONG.
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CHYME
SEMI LIQUID STATE OF FOOD. (THIS HAPPENS AFTER 3-5 HOURS)
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PHYLORIC SPHINCTER
AT THE END OF THE STOMACH AND ALLOWS THE CHYME TO ENTER IN SMALL AMOUNTS TO THE SMALL INTESTINE.
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SMALL INSTESTINE
1" IN DIAMETER AND 20 FEET IN LENGTH. IT COMPLETES THE DIGESTIVE PROCESS AND ABSORBS THE NUTRIENTS FROM THE CHYME.
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THREE SECTIONS OF SMALL INTESTINE:
- DUODENUM: FIRST SEGMENT, 9 INCHES LONG
- JEJUNUM, 8 FEET LONG
- ILEUM 12 FEET LONG
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THE LIVER
THE LARGEST GLAND IN THE BODY, LIES BELOW THE DIAPHRAGM INT HE RUQ OFTHE ABDOMEN. IT SECRETES BILE. IT ALSO STORES GLYCOGEN, A FORM OF GLUCOSE
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GALLBLADDER
A SMALL SAC ATTACHED TO UNDER THE LIVER. ITS SOLE PURPOSE IS THE CONCENTRATION AND STORAGE OF BILE.
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CHOLELITHIASIS
GALLSTONES, THIS OBSTUCTS THE BILE DUCTS.
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JAUNDICE
WHEN BILE IS ABSORBED INTO THE BLOOD STREAM, PRODUCING THE YELLOW DISCOLORIZATION.
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CHOLECYSTECTOMY
REMOVAL OF GALL BLADDER
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PANCREAS
LIES BEHIND THE STOMACH, A GLAND. SECRETES INSULIN DIRECTLY INTO THE BLOODSTREAM
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LARGE INTESTINE
WHERE THE WASTE PRODUCTS, UNDIGESTABLE MATERIALS ARE SENT THROUGH THE ILEOCECAL VALVE. 5 FEET LONG, 2" IN DIAMETER
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SIGMOID
ONCE THE LARGE INTESTINE ENTERS THE PELVIC CAVITY IT MAKES TWO TURNS IN THE SHAPE OF AN S...THEREFORE CALL SIGMOID SECTION OF THE COLON.
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GASTROSCOPY (EGD)
VIEWING OF THE ESOPHAGUS, STOMACH AND UPPER DUODENUM THROUGH A FLEXIBLE SCOPE.
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PROCTOSCOPY
EXAMINATION OF THE LOWER RECTUM AND ANAL CANAL THROUGH A 3 INCH LONG PROCTOSCOPE
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SIGMOIDOSCOPY
EXAMINATION TO VIEW THE LOWER PORTION OF THE SIGMOID AND RECTUM THROUGH A 10-12" SIGMOIDOCOPE
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APPENDICITIS
INFLAMMATION OF THE APPENDIX
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CIRRHOSIS
DISEASE OF THE LIVER, CAUSES DESTRUCTION OF THE LIVER CELLS. THIS LEADS TO IMPAIRED BLOOD AND LYMPH CIRCULATION AND INTERFERES WITH THE LIVERS JOB
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COLITIS
INFLAMMATION OF THE COLON
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COLOSTOMY
ARTIFICIAL OPENING OF THE COLON, WASTE IS EXCRETED FROMTHE ABDOMINAL WALL
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CRHONS DISEASE
INFLAMMATION OF ANY PORTION OF THE GI TRACT, MOST COMMON IN THE TERMINAL ILEUM.
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DIVERTICULOSIS
BULGING POUCHES IN THE WALL OF THE GI TRACT
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ESOPHAGEAL VARICES
DILATED, TORTUOUS VEINGS IN THE LOWER SECTION OF THE ESOPHAGUS
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FISSURE OF THE ANUS
CRACK OR TEAR IN THE LINING OF THE ANUS
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GASTROENTERITIS
INFLAMMATION OF THE STOMACH AND INTESTINES. (INTESTINAL FLU, TRAVELERS DIARRHEA OR FOOD POISONING)
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GERD (GASTROESOPHAGEAL REFLUX DISEASE)
BACKFLOW OF GASTRIC CONTENTS INTO THE ESOPHAGUS THROUGH THE SPINCTER JUST ABOVE THE STOMACH
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HEPATITIS
INFLAMMATION AND INFECTION OF THE LIVER THAT CAN RESULT IN CELL DESTRUCTION AND DEATH.
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HERNIA
THE PROTRUSION OF A INTERNAL ORGAND THROUGH A NATURAL OPENING OF THE BODY WALL
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HERNIORRHAPHY
THE PROCEDURE THAT REPLACES THE CONTENTS OF THE SAC
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ILEOSTOMY
SURGICAL OPENING OF THE ILEUM, ALLOWS THE SMALL INTESTINE TO EMPTY THROUGH THE ABDOMINAL WALL
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PANCREATITIS
INFLAMMATION OF THE PANCREAS
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PARALYTIC ILEUS
USUALLY OCCURS IN SMALL INTESTINE, INTESTINAL OBSTRUCTION. VOMITING, STOMACH PAIN
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PRURITUS ANI
ITCHING OF THE AREA SURROUNDING THE ANUS
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PYLORIC STENOSIS
NARROWING OF THE PYLORIC SPHINCTER.
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ULCERATIVE COLITIS
INFLAMMATORY DISEAS, AFFECTS THE MUCOSA OF THE COLON
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