Volume 1, Issue 1
Page 14
The Human Digestive System
by Dr. Chamara De Zoysa
N
ow our cafeteria warden would know, the guys and girls of BCAS love the food given+ All
types, including a range a of burgers and hot dogs, especially the chili prawn hot dog (which
gives a good kick)+ Now that is all when and good, but where does all this go to? Have you ever wondered? Well , hopefully this article will put those questions to rest+ Given below is the detailed pathway of the human digestive system+
MOUTH CAVITY
This is the opening of the digestive system+
This also includes tongue, teeth and salivary
glands+
Tongue is a muscular organ which helps in
food biting, swallowing, and speaking+
All the taste sensitive receptors are present in
the tongue++
Teeth helps in the chewing of food and grinding the in to small particles+
Salivary glands secrets saliva which acts as an
enzyme n food digestion+
The pH of saliva is 6+5-7+00+
Components of saliva are; Water, Inorganic
ions, Mucous, Enzymes, Urea and Uric acid+
Functions of the saliva is to ; Make the food wet, Destroy the bacteria in the food, Digest the starch
in the food and etc+
ESOPHAGUS
This is situated at the middle of the body+
This get attached with the stomach+
When there is no swallowing the two ends are closed+
STOMACH
This is the broadest part of the digestive system+
This takes the shape of a letter “ J “+
There are four parts ; Cardiac region, Fundus,
Body, Phylorus+
Secretion of the stomach contain