Soft Palate And Phayrnx Flashcards
What is the soft palate
-forms a moveable partition between the oropharynx and the nasopharynx
-made of muscle overhead by non keratinised stratified squamous epithelium
-extends laterally to form the palatoglossal and palatophayngeal arches
-receives sensory innervation via the maxillary division of the trigeminal nerve
Muscles of the soft palate
Levator veli palatini
Tensor veli palatini
Palatoglossus
Palatopharyngeus
Origin of the levator veli palatini
Auditory tubes and petrous part of temporal bone
Insertion of Levator veli palatini
Palatine aponeurosis (connective tissue)
Action of the levator veli palatini
Tenses soft palate and equalises pressure in middle ear
Innervation of levator veli palatini
Vagus (pharyngeal plexus)
Origin of tensor veli palatini
Auditory tubes and sphenoid bone
Insertion of tensor veli palatini
Palatine aponeurosis
Action of tensor veli palatini
Tenses soft palate and equalises pressure in middle ear
innervation of tensor veli palatini
Mandibular division of trigeminal
Origin of Palatoglossus
Palatine aponeurosis
Insertion of Palatoglossus
Posterolateral aspect of the tongue
Action of Palatoglossus
Elevates the tongue and narrows the oropharyngeal isthmus
Innervation of Palatoglossus
Vagus (pharyngeal plexus)
Origin of Palatopharyngeus
Palatine aponeurosis
Insertion of Palatopharyngeus
Lateral pharyngeal wall
Action of Palatopharyngeus
Elevates the pharynx