structure and function of digestive system Flashcards
1
Q
where does the digestive system start and end
A
starts in mouth ends in the anus
2
Q
what happens first in the digestive system process
A
food is ingested through the mouth
3
Q
what digestion happens in the mouth
A
mechanical digestion
4
Q
what is mechanical digestion
A
any physical breakdown of food
5
Q
what happens by chewing and grinding food in the mouth
A
food breakdowns into smaller pieces which increases surface area
6
Q
what in saliva lubricates food
A
mucus
7
Q
what enzymes does mucus provide
A
amylase and lipase
8
Q
what does amylase and lipase do
A
initiate chemical digestion of starch and lipids
