Zygomatikus

The zygomaticus major muscle is a facial muscle located in the cheek region of the human body. It is one of the muscles of facial expression and is innervated by the facial nerve (cranial nerve VII). The zygomaticus major muscle originates from the zygomatic arch and inserts into the orbicularis oculi muscle and the skin of the cheek. Its primary function is to elevate the angle of the mouth, contributing to the expression of smiling and squinting. The zygomaticus major muscle is often referred to as the "smiling muscle" due to its role in producing a smile. It is a paired muscle, with one muscle on each side of the face. The zygomaticus major muscle is a relatively small muscle, but it plays a significant role in facial expression and communication.