messageds = new Array()
messageds[0] = null;
messageds[1] = "Teeth:
to cut and chew food."
messageds[2] = "Pharynx(throat):
the muscular passage
between the mouth and the
oesophagus."
messageds[3] = "Oesophagus (gullet):
transports food from the
pharnyx to the stomach. "
messageds[4] = "Stomach:
squashes food and mixes
it with acid and its own
digestive enzymes. "
messageds[5] = "Pancreas:
makes pancreatic juices
containing digestive enzymes. "
messageds[6] = "Colon:
the part of the large intestine
that absorbs water and
minerals from the digestive
leftovers back into the body. "
messageds[7] = "Rectum:
the part of the large intestine
that forms left-overs into
faeces, and stores them "
messageds[8] = "Anus:
opens to allow the faeces to
be expelled. "
messageds[9] = "Appendix:
extends out of the large
intestine but has no well
defined function. Inflammaton
leads to appendicitis"
messageds[10] = "Small intestine:
mixes food with enzymes and
emulsifiers and absorbs the
digested products into the
body.
It has three parts :
the duodenum, jejunum, and
ileum"
messageds[11] = "Gall Bladder:
stores bile salts- used to
break up fats and oils and
empties them into the intestine"
messageds[12] = "Liver:
process and stores nutrients,
and produces bile salts"
messageds[13] = "Tongue:
Moves the food around for
thorough chewing and mixing
with saliva"
messageds[24] = "The digestive system
When you swallow food, it
enters a long tube, called the
digestive tract(gut). This tract
has several main sections-the
mouth, pharynx (throat),
oesphagus, stomach, and
intestines-each of which has
a special role in digestion.
When food reaches the small
intestine, it passes through
the intestine lining into the
body. This process is called
absorption. The lining of the
small intestine has
thousands of tiny finger-or
tongue-shaped parts called
villi, which are themselves
covered by thousands of
microvilli (opposite). The villi
absorb digested food into the
blood, to be distributed to the
body tissues. The digestive
system as a whole also
includes the pancreas, liver,
and gall bladder (opposite),
which make and distribute
different digestive juices."