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Lips, soft pliable anatomical structures that form the mouth margin of most vertebrates, composed of a surface epidermis (skin), connective tissue, and (in typical mammals) a muscle layer. In man the outer skin contains hair, sweat glands, and sebaceous (oil) glands.
The function of the lips is deeply intertwined with human behavior, health, and communication. They are not only central to several physical processes but are also emblematic of human emotion and expression, serving as a powerful tool for non-verbal communication.
The lips are a horizontal pair of soft appendages attached to the jaws and are the most visible part of the mouth of many animals, including humans. [1] Vertebrate lips are soft, movable and serve to facilitate the ingestion of food (e.g. suckling and gulping) and the articulation of sound and speech.
The lips serve for creating different sounds — mainly labial, bilabial, and labiodental consonant sounds as well as vowel rounding — and thus are an important part of the speech apparatus. The lips enable whistling and the performing of wind instruments such as the trumpet, clarinet, flute and saxophone.
What’s my mouth’s function? Your mouth supports many daily functions, including: Breathing. Talking. Chewing. Tasting. Swallowing. Eating. Drinking. Mouth function in digestive system. Your mouth is where digestion begins. When you chew food, your salivary glands make saliva (spit). Saliva helps break down starches in the foods you eat.
The lips surround the oral cavity and play a vital role in mastication, facial expression, phonation, tactile sensation, and intimacy. The lips aid in eating by holding food within the mouth and creating an airtight seal that prevents liquids from spilling out of the oral cavity.
Lips are a part of the digestive system, and they have several essential functions associated with digestion, including food intake. Besides digestion functions, lips also provide erogenous function, articulation and tactile senses, and they participate in creating different facial expressions.
Breathing – The lips help us breathe by controlling airflow in and out of our mouth. Erogenous zone – A multitude of nerve endings makes the lips sensitive and also classifies them as an erogenous zone. Facial expression – Our lips help express our emotional state, for instance when smiling or frowning. The anatomy of the lips.
mouth, in human anatomy, orifice through which food and air enter the body. The mouth opens to the outside at the lips and empties into the throat at the rear; its boundaries are defined by the lips, cheeks, hard and soft palates, and glottis.
Plastic Surgery. A curated suite of educational tools designed specifically for the evidence-based Plastic Surgeon. Go Pro with a Free Trial. The lip is a composite soft tissue structure of the skin, muscle, and mucosa. Explore lip innervation, blood supply, muscles, and function.