Lips

Lips are fleshy, flexible structures forming the entrance to the mouth, essential for speech, eating, and facial expressions. They contain muscles, nerve endings, and blood vessels, allowing them to move and feel sensation. Lips help articulate sounds during speech, hold food and liquids inside the mouth, and contribute to facial expressions like smiling and frowning. Their sensitive skin and muscle structure enable fine control of movements. Additionally, lips play a role in protecting the mouth's interior and can show emotional states, making them a key feature for communication and practical functions.