Many of todays and previous detectives have used Facial Action Coding(FAC) as a tool to identify lies a person could be telling. they can also use this to identify a mood a person could be in or even able to estimate the persons intelligence. Even though many people aren’t experts in facial expression identification almost everyone can identify the mood a person is in by their facial expression. Identifying the mood someone is in isn’t as hard as you would think.
If its just a slight tilt of the corner of the mouth or the narrowed eyes you can identify that they are mad or happy maybe even sad or scared. All of these details about an expression are all controlled by a group of muscles usually called mimetic muscles. The muscles tighten and release to “flex” causing the facial expressions. Many people are oblivious to the slight twitch at the corner of the mouth or widen of the eyes but that can be changed easily. Just by watching and having quick eyes can be useful.
The mimetic muscles are the group of muscles in the face that causes facial expressions. The mimetic muscles are a group of striated skeletal inverted by the facial nerve, which end at the end of each the face. The masticatory muscles are inverted by the mandibular nerves, a branch of trigeminal nerve.The facial muscles are derived from the 2nd branchial arch.
The first sign of damage to these nerves is the inability to move them. This is the result of
