Anatomy and Physiology of Digestion Flashcards
The….process begins with the senses
digestive
The first step of digestion is….
mastication
From the mouth the food moves to the stomach by way of the….
esophagus
The muscles in the esophagus squeeze the food downward with a wavelike motion known as….
peristalsis
The stomach acid is kept out of the esophagus by the action of the….
cardiac valve
The…. keeps the food in the stomach until it has been properly churnes and mixed.
pyloric sphincter
The substance secreted by the liver and stored in the gall bladder and released into the small intestines for the emulsification of fats is….
bile
The nutrients are absorbed into tiny lymph vessels called
lacteals
From the small intestines the remaining material which is mostly nondigestable fiber, water and waste is passed through yet another sphinter valve the….
ileocecal valve
The first part of the small intestine is the….
duodenum
The primary function of the bile is the….of fats
emulsification
The …. and pancreatic juices change the pH from acid to basic.
bile
By the time the food reaches the colon it is in a semi fluid state and is refered to as
chyme
….are enzymes which help break down food substances into forms that can be absorbed and assimilated by the body
digestive enzymes
….also called ptyalin is an enzyme that aids the breakdown of starches. It is secreted in the saliva and pancreatic juices.
amylase