Posterior tongue
Tongue
The entrance to the larynx, viewed from behind.
Latin	pars posterior dorsi linguae
Gray's	subject #243 1125
Nerve	hypoglossal (motor), glossopharyngeal (sensory)

The Posterior tongue, or pharyngeal part, is the part of the tongue behind the terminal sulcus.

At its root, it is directed backward, and connected with the hyoid bone by the Hyoglossi and Genioglossi muscles and the hyoglossal membrane; with the epiglottis by three folds (glossoepiglottic) of mucous membrane; with the soft palate by the glossopalatine arches; and with the pharynx by the Constrictores pharyngis superiores and the mucous membrane.

It is derived primarily from the third pharyngeal arch. (The second arch has a substantial contribution during fetal development, but this later atrophies. The fourth arch may also contribute, depending upon how the boundaries of the tongue are defined.)

[edit] See also

• Midline glossectomy

[edit] External links

• Embryology at UNSW Notes/head6

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

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v • d • e Head and neck anatomy, digestive system: Mouth anatomy (TA A05.1-2, GA 11.1110-2, 1125-1141) Mouth Vestibule of mouth Lip (Upper, Lower, Vermillion border) · Philtrum Oral cavity proper Palate/ roof of mouth Hard palate · Soft palate · Palatine raphe · Incisive papilla Tongue dorsum (Taste bud, Median sulcus, Terminal sulcus, Foramen cecum, Lingual tonsils) · underside (Frenulum, Fimbriated fold, Sublingual caruncle) · Anterior · Posterior · Glossoepiglottic folds Other Teeth · Gingiva (Interdental papilla, Gingival sulcus, Gingival margin) · Oral mucosa · Buccal fat pad Salivary glands Parotid gland/Parotid duct · Submandibular gland/Submandibular duct · Sublingual gland/Major sublingual duct Oro-pharynx arches/fauces (Palatoglossal, Palatopharyngeal) · Oropharyngeal isthmus/Isthmus of the fauces · Palatine tonsil · Uvula mouth navs: anat/dev, noncongen/congen face/congen GI/neoplasia, symptoms, proc