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Anatomical Variations in Clinical Dentistry pp 177–184Cite as

Anatomy and Variations of the Lip

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Abstract

The lips are two flaps surrounding the oral orifice. As they are located at the entrance to the digestive tract, the external surface is covered with skin and the internal surface with mucosa. Externally, the appearance of the lip can vary because of syndromes affecting the face. Lip shape is usually defined by the shape of the philtrum. The lateral border of the lip and the nasolabial fold differ among individuals in shape and length. Internally, the labial salivary glands can be affected by disease and aging. The muscles in the lips can also be altered by certain diseases. In this chapter, we describe the anatomy and variations of the lip.

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Authors and Affiliations

  1. Kurume University School of Medicine, Kurume, Fukuoka, Japan

    Koichi Watanabe & Tsuyoshi Saga

Authors
  1. Koichi Watanabe
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  2. Tsuyoshi Saga
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Editors and Affiliations

  1. Seattle Science Foundation, Seattle, WA, USA

    Joe Iwanaga

  2. Seattle Science Foundation, Seattle, WA, USA

    R. Shane Tubbs

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Watanabe, K., Saga, T. (2019). Anatomy and Variations of the Lip. In: Iwanaga, J., Tubbs, R. (eds) Anatomical Variations in Clinical Dentistry. Springer, Cham. https://doi.org/10.1007/978-3-319-97961-8_17

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  • DOI: https://doi.org/10.1007/978-3-319-97961-8_17

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-97960-1

  • Online ISBN: 978-3-319-97961-8

  • eBook Packages: MedicineMedicine (R0)

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