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Airway Management
Published in Elizabeth Combeer, The Final FRCA Short Answer Questions, 2019
Nasal air passages = ophthalmic and maxillary divisions of trigeminal nerve: Anterior septum and nares: anterior ethmoidal nerve (V1).Elsewhere: greater and lesser palatine nerves (V2).
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
The greater and lesser palatine nerves supply both the hard and soft palates and carry with them postganglionic parasympathetic fibers. Remember that the nerve of the pterygoid canal (Vidian nerve) enters the ptery-gopalatine fossa, is connected anteriorly to the pterygopalatine ganglion, and carries preganglionic parasympathetic axons from the greater petrosal nerve and postganglionic sympathetic axons from the deep petrosal nerve (Plates 3.20 and 3.39; described in detail in Section 3.3.1.5). The lesser palatine nerve and the greater palatine nerve carry these fibers from the pterygopalatine ganglion through the greater palatine canal and pass through the lesser and greater palatine foramina, respectively.
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 sensory nerves to the palate are derived from the greater and lesser palatine and nasopalatine branches of the maxillary nerve (Figure 41.10) These nerves pass through the pterygopalatine ganglion. The greater palatine nerve descends through the greater palatine canal, entering the hard palate at the greater palatine foramen. It then passes forwards on the bony palate towards the canine tooth, supplying the gums and the mucosa and glands of the hard palate (excluding the anterior teeth). As it leaves the greater palatine canal, palatine branches are also distributed to the soft palate. The smaller lesser palatine nerves descend through the greater palatine canal to emerge through the inconspicuous lesser palatine foramina and give branches to the uvula, tonsil and soft palate. Fibres conveying taste impulses from the palate probably pass via the palatine nerves to the pterygopalatine ganglion (see Figure 41.10) and through it to the nerve of the pterygoid canal and then the greater petrosal nerve to reach the facial ganglion, where their somata are situated. Parasympathetic postganglionic secretomotor fibres run in the facial nerve through its greater petrosal nerve to reach the pterygopalatine ganglion to be distributed in the palatine nerves, thereby reaching palatine mucous glands.
A Prospective, Randomized Clinical Trial to Evaluate Analgesic Efficacy of Bilateral Pterygopalatine Fossa Injection in Patients Undergoing Maxillofacial Cancer Surgeries Under General Anesthesia
Published in Egyptian Journal of Anaesthesia, 2021
Ekramy M Abdelghafar, Dina Nabil Abbas, Ahmed Othman, Sherif Bahaa Elddin Zayed, Ashraf Hamed Shawki
In our study, group A achieved the targeted blood pressure with lower doses of sevoflurane, nitroglycerine, and propranolol, compared to group B. The hemodynamic effects of PPF block could be related to the adequate profound anesthesia achieved in the sphenopalatine ganglion and its related nerves (maxillary greater and lesser palatine nerves). Blockade of the trigeminal ganglia via diffusion of local anesthetic through the foramen rotundum prevented a rapid fluctuation in blood pressure due to painful stimulation during surgical manipulation. Our findings agree with the results of Hassan and Ehab, Ashgan et al., and Chadha et al. [13–15].
Bilateral suprazygomatic maxillary nerve block versus palatal block for cleft palate repair in children: A randomized controlled trial
Published in Egyptian Journal of Anaesthesia, 2018
Mohamed M. Abu Elyazed, Shaimaa F. Mostafa
As regards palatal block, our results showed better postoperative analgesia in PB group compared to control group. The palate receives sensory innervation from naso palatine, greater and lesser palatine nerves. Blocking these nerves provides adequate palatal analgesia.