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Today we are going to describe the viscera of the head and neck or the inside of the
head and neck. And to understand this we have to take a section in the mid line of the head
and neck, passing by the nose, by the mouth and by the structure of the neck. So we will
take this section and we will look at the medial side like this. The first indicator
or the first landmark in the medial side will be this. This is the hard palate that separates
the nose above from the mouth. Its posterior continuation backward is the soft palate.
Which terminates posteriorly at the thin structure which is called uvela. So the our landmark
will be the hard palate, then will have the soft palate that terminates at the mid line
at the uvela. Above the hard palate there is the nose, therefore the hard palate forms
the floor of the nose and of course the base of the skull forms the roof of the nose. The
roof of the nose is formed of this is the this is the frontal bone and this is the cavity
of the frontal bone, which the frontal air sinus. This is the first structure forming
the roof of the nose. And when we go posteriorly we will have the cribriform plate of ethmoid
and then will go to the cavity of the sphenoid bone which is the sphenoid air sinus. In another
specimen we can seen this, this is the nose