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The tongue is an important accessory organ in the digestive system. The tongue is used for crushing food against the hard palate, during mastication and manipulation of food for softening prior to swallowing. The epithelium on the tongue's upper, or dorsal surface is keratinised. Consequently, the tongue can grind against the hard palate ...
Lingual papillae, particularly filiform papillae, are thought to increase the surface area of the tongue and to increase the area of contact and friction between the tongue and food. [2] This may increase the tongue's ability to manipulate a bolus of food, and also to position food between the teeth during mastication (chewing) and swallowing.
Masticatory mucosa, keratinized stratified squamous epithelium, found on the dorsum of the tongue, hard palate, and attached gingiva. Specialized mucosa, specifically in the regions of the taste buds on lingual papillae on the dorsal surface of the tongue; contains nerve endings for general sensory reception and taste perception. [8]
Geographic tongue, also known by several other terms, [note 1] is a condition of the mucous membrane of the tongue, usually on the dorsal surface. It is a common condition, affecting approximately 2–3% of the general population. [2] [7] It is characterized by areas of smooth, red depapillation (loss of lingual papillae) which migrate over time.
Dorsum (anatomy), the upper side of an animal, or the back in erect organisms Dorsum humanum, the human back; Dorsum of foot, the top of the foot; Dorsum of hand, the back of the hand; The back of the tongue, which is used for articulating dorsal consonants
In dorsal gestures, different parts of the body of the tongue contact different parts of the roof of the mouth, but it cannot be independently controlled so they are all subsumed under the term dorsal. That is unlike coronal gestures involving the front of the tongue, which is more flexible.
The dorsal (from Latin dorsum ' back ') surface, (also dorsum) of an organism or organ, refers to the back, or upper side, such as in the human, the dorsum of the tongue, the dorsum of the hand, and the dorsum of the foot. If talking about the skull, the dorsal side is the top. [13] [9]
A speech sound made with the middle part of the tongue (dorsum) touching the soft palate is known as a velar consonant. It is possible for the soft palate to retract and elevate during speech to separate the oral cavity (mouth) from the nasal cavity in order to produce the oral speech sounds.