small intestines

Cards (15)

what are the two regions of the small intestines
duodenum and ileum
what is another name for partially digested food
chyme
what happens to the chyme when the sphincter muscles relax 
it is passed little by little into the duodenum
what is the duodenum 
first section of the small intestine that receives secretions from the liver and pancreas
whilst the bolus of food is moving through the duodenum what lubricates it 
mucus
what neutralises the hydrochloric acid in the stomach 
alkaline secretions
where is the alkaline secretions secreted before it neutralises the hydrochloric acid 
in cells in the sub mucosa
what is made in the liver
bile
where is bile stored 
gallbladder
through what duct does bile enter the duodenum?
bile duct
what does bile contain 
bile salts
what are the properties of bile salts 
both hydrophilic and hydrophobic
what do bile salts do 
they emulsify lipids present in partially digested food
what do bile salts do to increase enzyme action 
they break up large globules into smaller droplets thus increasing the surface area for enzyme action
what property of bile neutralises acid 
it is alkaline