2.Explain the role of following organs in the digestive track.
a)mouth
b)stomach
c)small intestine
d)large intestine
3.Where are villi found?
4.What does liver secret?
Answers
BRAINLIST PLZ
1)The mouth is the beginning of the digestive system -digestion starts there before you even take the first bite of a meal. The smell of food triggers the salivary glands in your mouth to secrete saliva, causing your mouth to water.
2)Your stomach is a sac-like organ with strong muscular walls. In addition to holding food, it serves as the mixer and grinder of food. Your stomach makes acid and powerful enzymes that break the food down and change it to a liquid or paste. From there, food moves to your small intestine.
3)The small intestine is the part of the intestines where 90% of the digestion and absorption of food occurs, the other 10% taking place in the stomach and large intestine. The main function of the small intestine is absorption of nutrients and minerals from food.
4)The function of the large intestine (or large bowel) is to absorb water from the remaining indigestible food matter, and then to pass the useless waste material from the body.
5)Villi are small finger-like outgrowths present that help in the process of absorption. These are located in the inner walls of the small intestine. Its function is to increase the surface area of the small intestinal wall to absorb the digested food..
6)they secrete mucus