| palatal myoclonus | Rhythmic contractions of the soft palate, the facial muscles, and the diaphragm, related to lesions of the olivocerebellar pathways. See: palatal nystagmus. (05 Mar 2000) |
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| palatal nystagmus | A clonic spasm of the levator palati muscle, causing an audible click. (05 Mar 2000) |
| palatal obturators | Appliances that close a cleft or fissure of the palate. (12 Dec 1998) |
| palatal papillomatosis | Closely arranged papules of the palatal mucosa underlying an ill-fitting denture. Synonym: palatal papillomatosis. (05 Mar 2000) |
| palatal plate | A partial denture major connector that has an anteroposterior width in excess of two maxillary premolars. (05 Mar 2000) |
| palatal reflex | Swallowing reflex induced by stimulation of the palate. (05 Mar 2000) |
| palatal seal | The seal at the posterior border of a denture. See: posterior palatal seal area. Synonym: palatal seal, post dam, postdam, postpalatal seal. (05 Mar 2000) |
| palatal shelf | A medially directed outgrowth of the embryonic maxilla; when fused with its opposite number it forms the secondary palate. (05 Mar 2000) |
| palatal triangle | A triangular area bounded by the greatest transverse diameter of the palate and by lines converging from its extremities to the alveolar point. Synonym: trigonum palati. (05 Mar 2000) |
| median palatal cyst | A developmental cyst located in the midline of the hard palate. (05 Mar 2000) |
| posterior palatal seal | The seal at the posterior border of a denture. See: posterior palatal seal area. Synonym: palatal seal, post dam, postdam, postpalatal seal. (05 Mar 2000) |
| posterior palatal seal area | The soft tissues along the junction of the hard and soft palates on which pressure within the physiologic limits of the tissues can be applied by a denture to aid in the retention of the denture. Synonym: post dam area, postpalatal seal area. (05 Mar 2000) |
| abdominal fissure | Congenital failure of the ventral body wall to close. See: celosomia, gastroschisis. (05 Mar 2000) |
| Ammon's fissure | A pearl-shaped opening in the sclera during early embryogenesis. (05 Mar 2000) |
| anal fissure | A tear or superficial laceration that can occur in the mucosa that lines the anal canal. (27 Sep 1997) |