Biology, asked by shinchan3449, 1 year ago

What is the function of the
following:
1. Duodenum
2. Jejenum
3. Ileum

Answers

Answered by OJASWI
8
1. It receives partially digested food from the stomach and plays a vital role in the chemical digestion of chyme in preparation for absorbtion in the small intestine.


2. The lining of the jejunum is specialized for the absorption, by enterocytes, of small nutrient particles which have been previously digested by enzymes in the duodenum.



3. The function of illeum  is mainly to absorb vitamin B12 and bile salts and whatever products of digestion were not absorbed by the jejunum. 



Hope it helps
Thanks..

shinchan3449: ur wlcm
Answered by Anonymous
2
☆☆ AS-SALAMU-ALYKUM ☆☆

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DIGESTIVE FUNCTION OF DUODENUM :-
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THE DUODENUM CONTINUES THE PROCESS OF FOOD BREAKDOWN .
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ITS NAME STEMS FROM THE LATIN " DUODENUM DIGITORIUM , MEANING TWELVE FINGERS OR INCHES "
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IT IS ROUGHLY HORSE -SHOE-SHAPED .
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ANATOMICALLY IT IS SUB-DIVIDED INTO FOUR SEGMENTS : THE SUPERIOR , DECENDING , HORIZONTAL AND ASCENDONG DUODENUM .
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INSIDE THE DUODENAL TUBE , CHYME IS MIXED WITH FLUIDS FROM GALLBLADER (BILE) AND PANCREAS (PANCREATIC JUICE) .
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BILE BREAKS DOWN FAT PARTICLES INTO SMALLER DROPLETS , WHILE PANCREATIC JUICE CONTAINS ENZYMES THAT CONVERT FAT INTO FATTY ACIDS AND GLYCEROL , AND SODIUM BICARBONATE TO NEUTRALIZE STOMACH ACID .

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DIGESTIVE FUNCTION OF JEJUNUM :-
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ROUGHLY 4-7 FEET IN LENGTH , THE JEJUNUM IS WHERE CHEMICAL BREAK DOWN OF THE FOOD CHYME IS COMPLETED .
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PANCREATIC ENZYMES , ALONG WITH ENZYMES PRODUCED BY THE JEJUNUM WALL , FINALIZE THE FOOD DIGESTION PROCESS.
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THE TERM JEJUNUM STEMS FROM THE LATIN JEJUNUS , MEANING EMPTY .
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IN SOME GASTRIC BYPASS OPERATIONS , PART OF THE JEJUNUM IS ALSO BYPASSED TO REDUCE CALORIE INTAKE .
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DIGESTIVE FUNCTION OF ILLEUM :-
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ROUGHLY '7_5' FEET IN LENGTH , THE ILLEUM IS THE FINAL SECTION OF THE SMALL INTESTINE , LINKED TO THE LARGE INTESTINE BY THE ILEOCECAL VALVE .
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THE MAIN FUNCTION OF THE ILLEUM IS TO ABSORB NUTRIENTS . BILE IS ALSO ABSORBED HERE AND RETURNS TO THE LIVER THEOUGH BLOOD VESSELS IN THE INTENTINAL WALLS .
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THE UNABSORBED WATERY REMAINS OF THE FOOD CHYME NOW PASS INTO THE LARGE INTESTINE FOR WATERY REMOVAL ANDBFINAL PROCESSING , BEFORE BEING EXPELLED FROM THE BODY .
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♡♤♡ INSHALLAH IT WILL HELP U ♡♤♡

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♢♢ HAVE A NICE DAY ☺☺☺♢♢
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