The zygomaticus minor is a small muscle located in the face that helps to control facial expressions. It originates from the zygomatic bone and inserts into the upper lip.
When the zygomaticus minor contracts, it pulls the upper lip upwards and outwards, helping to create a smile or grimace. This muscle works in conjunction with other facial muscles to produce a variety of expressions.
The zygomaticus minor is innervated by the facial nerve (cranial nerve VII) and is considered one of the muscles responsible for the "smiling" facial expression. It is important for non-verbal communication and plays a role in conveying emotions and social interactions.
Overall, the zygomaticus minor is a relatively small muscle but plays a significant role in facial expression and communication.
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