Which muscle covers the top of the nose and causes wrinkles between the eyebrows?

The procerus muscle is responsible for covering the top of the nose and is specifically involved in the formation of vertical wrinkles between the eyebrows. When this muscle contracts, it pulls the skin down between the eyebrows, contributing to the frowning expression and creating those characteristic lines. It plays a crucial role in facial expressions, particularly in expressing emotions such as anger or concentration. Understanding the function of the procerus helps in both anatomical knowledge and practical applications in esthetics, especially in treatments addressing dynamic wrinkles on the forehead area.

In contrast, the frontalis muscle is primarily responsible for raising the eyebrows and creating horizontal lines on the forehead, while the temporalis muscle is involved in chewing and does not affect the area of the nose or between the eyebrows. The zygomaticus muscle is responsible for smiling and involves the upper lip and cheek, not the area in question.