Exam (elaborations)
Path Ch 30_ large intestines
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Path Ch 30_ large intestines
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Path Ch 30: large intestinescecum- ✅pouch connected to junction of small and large intestines
what does the cecum do-✅absorbs fluids and salts
where is the appendix-✅at the end of the cecum
ascending colon-✅absorbs remaining water and solidifies it to form stool
transverse colon-✅absorbs water from food to help move waste products
what part of the colon is the longest and most mobile-✅transverse colon
descending and sigmoid colon-✅stores feces
what is the longitudinal muscle-✅taenia coli
what does taenia coli do-✅facilitates contraction; peristalsis
what is the circular muscle-✅Haustra
what does haustra do-✅increase surface area for absorption; helps move
food
✅haustrations
what is the shuffling effect-
propulsion- ✅mass movement
✅for absorption of water
why is the surface of the large intestine smooth-
and electrolytes
✅sodium
what are the main electrolytes absorbed in the large intestine-
and chloride
, where does most absorption occur- ✅in the small intestine
what does normal flora breakdown-✅protein, carbs, bile, salts
how much does bacteria contribute to feces-✅1/3 bulk of feces
flatus-✅gas
what can cause flatus-✅swallowing of air or bacteria fermentation
internal anal sphincter-✅involuntary smooth muscle at the distal end of GI
tract
what does the IAS do- ✅maintains fecal continence
external anal sphincter-✅voluntary striated muscles outside of the anal
wall and opening
what does the EAS do- ✅controls the release of stool
borborygmi- ✅rushing of fluids that cause gurgling sounds
constipation-✅fewer than 3 poops a week with straining and hard stool
what group is constipation most common-✅elderly
idiopathic constipation-✅constipation without a known cause
metabolic constipation-✅slow of the metabolism results in slowing of entire
digestive process
neurological constipation- ✅loss of bowel movement due to nerve
problems
systemic constipation-✅other diseases within the body cause constipation
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