10. SOFT PALATE movable muscular fold suspended from post border of hard palate Separates nasopharynx from oropharynx Trafficcontroller 2 surfaces 2 borders 2 folds of mucous memb
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13. Covered on its upper and lower surfaces by mucous membrane
22. Muscles Palatopharyngeus 2 fasciculi Origin: Ant Fasciculus Post border of hard palate Post fasciculus:palatineaponeurosis Insertion: posterior border of thyroid cartilage Action: Elevates wall of the pharynx
23. Muscles Palatoglossus Origin: palatine aponeurosis Insertion: side of tongue Action: pulls root of tongue upward, narrowing oropharyngeal isthmus
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25. Sensory Nerve Supply General Sensory:Mostly by the maxillarynerve through its branches: Middle lesser palatine nerve Posterior lesser palatine nerve Special Sensory:For taste sensations: lesser palatine nerves:greaterpetrosalnervegeniculate ganglion facial nerve nucleus of solitary tract. Secretomotor;Lesser palatine nerves Derived from sup salivatory nucleus Travel through greater petrosal nerves.
26. Motor Nerve Supply All the muscles, except tensor veli palatini, are supplied by the: Pharyngeal plexus Tensor veli palatini supplied by the: Nerve to medial pterygoid, a branch of the mandibular division of the trigeminal nerve
27. Passavants Ridge Upper fibres of palatopharyngeus Raises a ridge Morphology Best developed in cleft palate
28. Movements & functions of Soft palate Controls 2 gates Isolates mouth from Oropharynx during chewing Separates Oropharynx from nasopharynx Vary degree of closure of pharyngeal isthmus to modify quality of voice During coughing and sneezing
34. Paralysis of the soft palate The pharyngeal isthmus can not be closed during swallowing and speech Nasal regurgitation Nasal twang Flattening of Palatoglossal arch
35. Perforation of hard palate in Tertiary syphilis Epignathus :Teratoma of palate