The lips are the visible, fleshy borders of the mouth. They are essential for speech, expressing emotions, and eating. Formed by the muscles of the orbicularis oris, they are highly sensitive and play a crucial role in creating sounds and forming facial expressions. The lips also provide a sensory interface, detecting temperature, texture, and pressure. They protect the oral cavity from external elements and, in humans, are often emphasized aesthetically through cosmetics or symbolic gestures. Their shape, fullness, and colour vary significantly between individuals and across cultures, signifying aspects of physical attractiveness and even social signaling.
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EDGES LABIA
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