Kinnslimhinner

Kinnslimhinner, commonly referred to in anatomy as the buccal mucosa, denotes the mucous membrane that lines the inside of the cheeks and the adjacent vestibular areas of the oral cavity. It forms part of the oral mucosa, separating the oral cavity from the underlying tissues and the outside environment.

Anatomically, kinnslimhinner consists of a stratified squamous epithelium that is typically non-keratinized, sitting atop a connective tissue lamina propria. In the buccal region there is often a submucosal layer containing minor salivary glands and, in some individuals, adipose tissue. The mucosa is highly elastic and well supplied with blood vessels, which gives it a pink appearance and enables rapid repair after minor injuries. There is no muscle within the mucosa itself, though it is closely associated with underlying muscles of the cheek.

Functionally, kinnslimhinner provides protection to the tissues of the mouth against mechanical friction from food and from the teeth. It also assists in lubrication and facilitates chewing and speech by remaining flexible and resilient. The minor salivary glands within this mucosa secrete mucus to maintain moisture, contributing to comfort and oral hygiene.

Clinically, the buccal mucosa is a common site for trauma and irritation, such as cheek biting or irritation from dental appliances like dentures. It can be involved in various mucosal diseases and lesions, including aphthous ulcers, candidiasis, leukoplakia, and lichen planus. Because it is readily accessible, kinnslimhinner is frequently examined in routine dental and medical assessments. In reconstructive procedures, buccal mucosal tissue can be used as a graft material when needed.