As their name suggests, these muscles control the facial expressions by pulling and wrinkling the facial skin.
Description
The muscles of the facial expression are located within the subcutaneous tissue, and they originate from and insert on bones or within the subcutaneous tissue. They have a common embryological origin: the second pharyngeal arch.
Groups
They are usually split into 5 groups, depending on their location and function:
- Eyes
- Nose
- Mouth
- Forehead and occiput
- Neck