duodenum
First intestinal segment
The duodenum is the first section of the small intestine, connecting the stomach to the jejunum.
It receives partially digested food from the stomach along with bile and pancreatic secretions, continuing the digestive process.
The name comes from its length—about twelve finger-widths.
Plural: duodena or duodenums.
Intestinal hormone prompting bicarbonate
- gastrinPeptide prompting acid secretion
- neuroendocrineNerve-gland interaction system
- postprandialFollowing a meal
Partially digested stomach contents
- bileLiver-made digestive fluid
- pancreatic juiceDigestive enzymes from organ behind stomach
- enzymesReaction-speeding proteins
- amylaseStarch-digesting enzyme
lipase · protease · trypsin · hydrolysis · peristalsis · alkaline · bicarbonate · emulsification
Second small intestine portion
- ileumLast small intestine segment
- pylorusStomach's lower opening
- stomachDigestive organ below chest
- small intestineDigestive absorption organ
ampulla · sphincter · lumen · mucosa · villi · mesentery · foregut · submucosa
Internal organ examination
- celiac diseaseAutoimmune intestinal gluten reaction
- pepticRelating to digestion
- perforationHole punched through something
- hemorrhageProfuse discharge of blood
stenosis · atresia · malabsorption · obstruction · inflammation · erosion
Vital dietary substances
- ironElement twenty-six
- calciumElement twenty, builds bones
- folateVitamin for DNA synthesis
- vitaminsEssential organic nutrients
glucose · fatty acids · amino acids · electrolytes · microvilli · micronutrients · zinc · magnesium
secretin
Intestinal hormone prompting bicarbonate
- gastrinPeptide prompting acid secretion
- neuroendocrineNerve-gland interaction system
- postprandialFollowing a meal
chyme
Partially digested stomach contents
- bileLiver-made digestive fluid
- pancreatic juiceDigestive enzymes from organ behind stomach
- enzymesReaction-speeding proteins
amylase · lipase · protease · trypsin · hydrolysis · peristalsis · alkaline · bicarbonate · emulsification · peptidase
jejunum
Second small intestine portion
small intestine · ampulla · sphincter · lumen · mucosa · villi · mesentery · foregut · submucosa · serosa
endoscopy
Internal organ examination
- celiac diseaseAutoimmune intestinal gluten reaction
- pepticRelating to digestion
- perforationHole punched through something
hemorrhage · stenosis · atresia · malabsorption · obstruction · inflammation · erosion
nutrients
Vital dietary substances
vitamins · glucose · fatty acids · amino acids · electrolytes · microvilli · micronutrients · zinc · magnesium · water
- anatomybrain, heart, bones, liver, stomach
- digestionstomach acid, swallowing, digesting, chewing, digestion
- gutintestine, small intestine, large intestine, colon, bowel
- body passagesmouth, nose, ear, nostril, anus
- celiac diseaseceliac, celiac disease, gluten, gluten intolerance, gluten sensitivity
- digestive tractesophagus, stomach, pharynx, mouth, gullet