Mouth Divisions
A person's mouth can be divided into smaller sections. It can be divided into top and bottom, as well as into right and left sides. Let's look at these divisions a little more.
The mouth can be divided into a top and a bottom jaw and we call these arches
. The top arch is called the maxilla or maxillary arch and the bottom arch is called the mandible or mandibular arch.
Each arch can be further divided into a right and left side. By doing this, we end up with something that's called a quadrant. Since each arch has 2 quadrants, there are 4 quadrants in a mouth.
Here is a quick question to make sure everything is going okay: 
Value: 1
