|The entrance to the larynx, viewed from behind.|
|Latin||Pars posterior dorsi linguae|
|Gray's||subject #243 1125|
|Nerve||Hypoglossal (motor) and glossopharyngeal nerve (sensory)|
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 however 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.
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