Kalmia Latifolia

The palatoglossal arch (glossopalatine arch, anterior pillar of fauces) on either side runs downward, lateral (to the side), and forward to the side of the base of the tongue, and is formed by the projection of the glossopalatine muscle with its covering mucous membrane. It is the anterior border of the isthmus of the fauces and marks the border between the mouth and the palatopharyngeal arch. The latter marks the beginning of the pharynx.

References

This article incorporates text in the public domain from page 1137 of the 20th edition of Gray's Anatomy (1918)

Anatomy of the mouth
Lip	Vermilion border Cupid's bow Frenulum of lower lip Labial commissure of mouth Philtrum White roll
Cheek	Buccal fat pad
Palate	Hard palate Soft palate Palatine raphe Incisive papilla
Gums	Interdental papilla Gingival sulcus Gingival margin Gingival fibers Junctional epithelium Mucogingival junction Sulcular epithelium Stippling Periodontium Cementum Philtrum Gingiva Periodontal ligament
Glands	Parotid gland duct Submandibular gland duct Sublingual gland duct Tubarial salivary gland
Teeth	see tooth anatomy
Tongue	Top Taste bud Median sulcus Terminal sulcus Foramen cecum Lingual tonsils Underside Frenulum Fimbriated fold Sublingual caruncle Glossoepiglottic folds Lingual septum
Back of mouth	Oropharynx fauces Plica semilunaris of the fauces Uvula Palatoglossal arch Palatopharyngeal arch Tonsillar fossa Palatine tonsil