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Head and Neck
Published in Rui Diogo, Drew M. Noden, Christopher M. Smith, Julia Molnar, Julia C. Boughner, Claudia Barrocas, Joana Bruno, Understanding Human Anatomy and Pathology, 2018
Rui Diogo, Drew M. Noden, Christopher M. Smith, Julia Molnar, Julia C. Boughner, Claudia Barrocas, Joana Bruno
Remember that the sphenopalatine artery runs with the nasopalatine nerve from the sphenopalatine foramen to the incisive canal. The sphenopalatine artery branches into the posterior lateral nasal artery and the posterior septal branch (Plate 3.29; described in detail in Section 3.3.2.1). The descending palatine artery is a branch of the maxillary artery that runs through the greater palatine canal before bifurcating into the greater palatine artery and the lesser palatine artery.
Anatomy and Embryology of the Mouth and Dentition
Published in John C Watkinson, Raymond W Clarke, Terry M Jones, Vinidh Paleri, Nicholas White, Tim Woolford, Head & Neck Surgery Plastic Surgery, 2018
The periphery of the hard palate surrounding the necks of the teeth is termed the gingiva and a zone similarly lacking submucosa runs anteroposteriorly in the midline as a narrow, low ridge; the palatine raphe. At the anterior extremity of the raphe behind the incisor teeth is a small prominence, the incisive papilla that covers the incisive fossa at the oral opening of the incisive canal. Radiating outwards from the palatine raphe in the anterior half of the hard palate are irregular transverse ridges or rugae. The pattern of rugae is unique for the individual and has been used in forensic science to identify a dead individual.
Anatomy of the Nose and Paranasal Sinuses
Published in John C Watkinson, Raymond W Clarke, Louise Jayne Clark, Adam J Donne, R James A England, Hisham M Mehanna, Gerald William McGarry, Sean Carrie, Basic Sciences Endocrine Surgery Rhinology, 2018
Dustin M. Dalgorf, Richard J. Harvey
The nasal cavity extends from the external nares to the posterior choanae, where it becomes continuous with the nasopharynx. The nasal cavity is divided into two passage ways by the nasal septum. Each side consists of a floor, roof, lateral and medial (septum) wall. The nasal floor is concave from side to side, flat anteroposteriorly and horizontally oriented. The anterior three-quarters are comprised of the palatine process of the maxilla and the posterior one-quarter by the horizontal process of the palatine bone. Approximately 12 mm behind the anterior aspect of the nasal floor is a slight depression which corresponds to the incisive canal. The incisive canal contains terminal branches of the nasopalatine nerve and greater palatine artery. The roof of the nasal cavity is formed by the skull base and slopes downward anteroposteriorly. This is important to recognize during endoscopic sinus surgery as dissection progresses posteriorly towards the sphenoid sinus.
Detection and characterization of the accessory mental foramen using cone-beam computed tomography
Published in Acta Odontologica Scandinavica, 2018
Yihan Li, Xiangwen Yang, Bichu Zhang, Bin Wei, Yao Gong
The frequency of the AMF in literature ranges widely from 1.4 to more than 20% [10,12,15,18,19]. In addition to ethnic variations, the wide range of the frequency might result from differences in methodology and definition of AMF. In this study, CBCT was used to evaluate the AMF in a selected Chinese population due to its accuracy, non-invasive nature and convenience for a large-sample research. The AMF was defined as an additional buccal foramen with its bony canal bifurcating from the mandibular canal. It was also essential to distinguish AMFs from nutrient foramina showing no continuity with the mandibular canal [9,20]. The additional buccal foramina originating from the mandibular incisive canal were not qualified as AMFs [6,21].
Transnasal endoscopic marsupialization of nasopalatine duct cysts: A novel ‘Mickey Mouse’ sign and a septum-sparing surgical technique to reduce paresthesia risk
Published in Acta Oto-Laryngologica Case Reports, 2023
Shravan Gowrishankar, Nora Haloob, Claire Hopkins
The nasopalatine nerve runs through the nasal septum and courses through the mucoperichondrial, sloping downwards into the incisive canals to supply the hard palate, including the area adjacent to the upper incisors [13]. Damage to this nerve can lead to paresthesia or pain in this area. However, there may still be sensations due to dual supply from the anterior palatine nerve [14].