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Digestive process effects: -Esophagus, Stomach, and Duodenum bypass …
Digestive process effects:
-Esophagus, Stomach, and Duodenum bypass
-Stomach Cancer
Alimentary Canal (GI)
Mouth
Pharynx
Esophagus
stomach
Food holding area
Chyme- Food converted to this to move to Small Intestine
Has to be mixed with bile and pancreatic juice for digestion
cardial region
Fundus
Body
Pyloric Region
Pyloric Valve
Greater Curvature
Greater Omentum
blends with
Mesocolon
Lesser curvature
Lesser Omentum- runs to liver
Gastric gland cells
Parietal cells, Chief cells, Enteroendocrine cells
Intrinsic Factor Secretion
needed for B12 absorption
needed for RBC maturation
Small and Large intestine
Small Intestine
Duodenum
: mostly retroperitoneal
Duodenum glands
secretes alkaline mucus
Jejunum
: attached by mesentery
Ileum
: joins large intestine
Peyer's patches
- on mucosa of ileum
Absorption
Large surface for nutrient absorption
Circular folds
makes more time fore absorption
Villi
: contains lacteal
Intestinal crypts
glands between villi
Enterocytes, goblet cells, enteroendocrine, Paneth cells
Microvilli
: contains brush boarder enzymes
Basic Nutrients
needed by body
Carbohydrates
Only monosaccharides can be absorbed
Begins in mouth with
salivary amylase
Pancreatic amylase
Breaks down starch or glycogen
Proteins
Broken into amino acid monomers
Broken down by pancreatic proteases and brush border enzymes
Lipids
Broken down by Pancreatic lipases
Nucleic acids
Hydrolyzed by Pancreatic nucleases/
broken down by brush border enzymes
Vitamin, electrolytes, water
All mostly absorbed in small intestine
Vitamin K and B absorbed in large intestine
Large Intestine
Subdivisions-
Cecum, appendix, colon, rectum, and anal canal
Colon
Ascending
Up right side of abdomen
Transverse
Travels across abdomen
Descending
Down left side of abdomen
Sigmoid
S shape part that goes through pelvis
Anus
Accessory Digestive Organs
Teeth
Tongue
Galllbladder
Digestive glands
Salivary glands, liver, pancreas
Bypass surgery
Injury
Accident
Infection
Bacterial exposure
Viral exposure
Malfunction
Abnormal cell growth
Excessive radiation
Exposure
Carcinogens
Consumption
Chemical application
Will miss major digestive processes
No Chyme produced
Will not have holding area for food
Will miss some nutritional absorption
Won't absorb B12 effectively
Pernicious anemia
over working of remaining structures
Pain
Wear down structures faster