Front part of the head, extending from the forehead to the chin and housing the eyes, nose, mouth, and jaws. The receding of the jaw and the increasing size of the brain in human evolution has made the face essentially vertical, with two distinctively human features: a prominent, projecting nose and a clearly defined chin. The face and braincase follow different patterns of growth. While the face grows more slowly, it ends up much larger compared to the braincase in adults than at birth. The facial muscles move the features to express emotion.
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The term face refers to the central sense organ complex, for those animals that have one, normally on the ventral surface of the head and can depending on the definition in the human case, include the hair, forehead, eyebrow, eyes, nose, ears, cheeks, mouth, lips, philtrum, teeth, skin, and chin. The face has uses of expression, appearance, and identity amongst others.
Caricatures often exaggerate facial features to make a face more easily recognized in association with a pronounced portion of the face of the individual in question—for example, a caricature of Osama bin Laden might focus on his facial hair and nose; a caricature of George W. Bush might enlarge his ears to the size of an elephant's; a caricature of Jay Leno may pronounce his head and chin; and a caricature of Mick Jagger might enlarge his lips. Exaggeration of memorable features helps people to recognize others when presented in a caricature form.
The face is the feature which best distinguishes a person, and there are special regions of the human brain which when damaged prevent the recognition of the faces of even intimate family members. The pattern of specific organs such as the eyes or parts thereof are used in biometric identification to uniquely identify individuals.
By extension, anything which is the forward or world facing part of a system which has internal structure is considered its 'face', like the facade of a building. For example a Public Relations or Press Officer might be called the "face" of the organization he or she represents. "Face" also refers to reputation or standing in society, particularly Chinese society and is spoken of as a resource which can be won or lost. Because of the association with individuality the anonymous is sometimes called the "faceless".