Hello, I glue you all my regards. This time I write
about the explanation about human mouth. This is not really difficult to learn
because I’m sure you all know a little about the shape, position and fungtion
of our mouth. Mouth is the first way to started digesive system process, mouth
cavity.This process happen with mechanics and chemicals. Our mouth don’t work
by itself, in mouth cavity there are many organs to help when the process
start. The organs are Teeth, tounge and saliva gland. So, Let’s read the detail
explanation about the organs!
1. Teeth
Before I continue, it can be good if you look at the
mirror, open your mouth and stare your teeth. If you have done it let’s
continue. Like you see, teeth arrange and reside in upper jaw and lower jaw. Generally,
teeth have section there are
- The top teeth or crown of the teeth, the part which can seen outside.
- Teeth neck, the part is protected by gums, and its diveider between top and root teeth
- Root teeth, the part of teeth which buried in jaw.
Let’s continue to another part,
maybe you get benefit in knowing this. We are going to teeth layer, the outer
layer of teeth called email, this layer
is a hard layer in teeth. Its fungtion to protect teeth bones. Its mean, if
this part broken in the way of logic teeth easy to broke too. In email there is
dentin which is the net with yellow colour. Let’s read about outer layer of
teeth root called sementum and usually we know with teeth semen. Then the inner
part of teeth is teeth hollow (pulpa),
the hollow contain of nerve and intravenous.
Did you remember when your teeth grow for the first time? I’m sure no one can
remember it. Why? Because teeth grow when our age 6-7 months until 26 months. Teeth
when we are child called first born teeth or generally called milk teeth. After
we 6 until 14 ages, then milk teeth loosened one by one and change to permanent
teeth. So how is the arrangement of teeth? Let’s see the picture below.
PICTURE SOURCE HERE |
See? Teeth arranged in rows and the
position is in upper and lower jaw. All the milk teeth amount is 20, contains
of incisor which amount 8=(2*4), cuspi which amount 4=[2*(1+1)], and front
molar which amount 8=[2*(2+2)].
Adult teeth called permanent teeth which amount 32
contains of incisor which amount 8=(2*4), cuspi which amount 4=[2*(1+1)], front
molar which amount 8=[2*(2+2)], back molar which amount 12=[2*(3+3)].
Yup, after you know the arrangement of teeth, I’m sure your knowledge about
teeth added more. But there are more explanation about teeth, it has many
fungtion. Incisor to cutting the food, cuspi to
ripped food and molar to chew food.
2. Tongue
Tongue has many usefulness in digestive system in human. Be sides tounge is as a setter the position
of food in our mouth and push the food
to the next part, it always be indra which fungion to tste food. To more clear
about the position of tongue, let’s see the picture below.
PICTURE SOURCE HERE |
3. Saliva
Saliva is produced by 3 couple of
saliva gland, then currented to saliva canal which estuary to mouth hollow. The
3 named of saliva gland are Parotid Saliva Gland (near temples), Lower jaw
Saliva Gland and upper jaw Saliva Gland. I’m sure you have seen saliva right?
And did you now the contens of saliva?
If not, let’s check it out. Don’t be bored to read this post ok?
Saliva consist of water, mucous,
salt, and ptialin enzims. This enzim has fungtion to change flour subtance to
sugar such as maltose and glucose. After it finished in mouth, the food will go
to throat and continue to stomach and another digestive system.
This
is the end of my post about human mouth. If you read carefully you will add
more knowledge about our mouth. But, if there are many question in your mind
just comment in the comments box below to discuss together. Thanks ;)
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