makes chemical digestion more efficient
mouth
occurs in the pharynx requires 2 layers of muscle
where the stomache and esophogus meet; prevents heartburn
a hormone in blood
HCl, water and pepsinogen
pepsin
polypeptides
acid chyme enters the duodenum
pancreas and gall bladder
NH3 to make urea which is less toxic
gall bladder
hormones from the duodenum
high insulin and low glycagon
glycogen
the process of a substance exiting body that is a part of the body(pee)
process of a substance exiting the body that is not a part of the body (poo)
1. lips- hold food in oral cavity
2. teeth-breaks food down
3. saliva-moistens food
produces saliva, begins chemical digestion of starch
3
INTO blood( organs that make n secrete a substance)
releases hormones into duct, cavity or outside... EXIT
bolus: shewed up chunk of food before reaching stomach
chyme: food once it reaches the stomach
rhythmic contractions of smooth muscles of esophagus wall, pushing the bolus along, happens all along the digestive tract