Week 9 - Pharynx, Hard & Soft Palate Flashcards
What bone forms the anterior 2/3s of the bony palate ?
Palatine processes of the maxillae.
What bone forms the posterior 1/3 of the bony palate ?
Horizontal plates of palatine bone.
What is the function of the palatine rugae ?
Help tongue with movement of food.
What neurovascular structures run within the incisive canal ?
Nasopalatine nerve and greater palatine artery.
Where is the incisive fossa located ?
Posterior of central incisors.
Where is the greater palatine foramen located ?
Posterior and medially to third molar.
Origin of levator veli palatini ?
Pharyngotympanic tube and temporal bone.
Insertion of levator veli palatini ?
Palatine aponeurosis.
Action of levator veli palatini ?
Support tensor and opens auditory tube during swallowing for pressure exchange.
Origin of tensor veli palatini ?
Scaphoid fossa, spine of sphenoid and pharyngotympanic tube.
Insertion of tensor veli palatini ?
Palatine aponeurosis.
Action of tensor veli palatini ?
Tenses soft palate.
Origin of palatopharyngeus ?
Hard palate and palatine aponeurosis.
Insertion of palatopharyngeus ?
Lateral wall of pharynx.
Origin of palatoglossus ?
Palatine aponeurosis.
Insertion of palatoglossus ?
Posterolateral surface of the tongue.
Action of palatoglossus ?
Draws tongue and soft palate down.
Origin of musculus uvulae ?
Posterior nasal spine and palatine aponeurosis.
Insertion of musculus uvulae ?
Uvula.
Blood supply to hard palate ?
Greater palatine artery.
Blood supply to soft palate ?
Lesser palatine artery.
What are the greater and lesser palatine arteries branches of ?
Maxillary artery of external carotid artery.
What are the greater and lesser palatine nerves and the nasopalatine nerve a branch of ?
Maxillary division of trigeminal nerve (CNV2).
General sensory innervation of soft palate ?
Lesser palatine nerve.
General sensory innervation of hard palate and gingivae to first premolar ?
Greater palatine nerve.
General sensory innervation of anterior gingivae and mucosa ?
Nasopalatine nerve.
Motor control to the muscles of the soft palate ?
Pharyngeal plexus of vagus nerve (CNX).
Except tensor veli palatini - medial pterygoid nerve of mandibular branch of trigeminal nerve (CNV3).
Name superior and inferior boundary of nasopharynx.
Posterior border of nasal septum.
Soft palate.
Name superior and inferior boundary of nasopharynx.
Posterior border of nasal septum.
Soft palate.
Name superior and inferior boundary of oropharynx.
Posterior margin of soft palate.
Epiglottis.
Name superior and inferior boundary of larngopharynx.
Superior border of epiglottis.
Inferior border of cricoid cartilage.
What type of cartilage is the epiglottis formed by ?
Elastic.
Where are the lingual tonsils located ?
Behind vallate papillae on posterior portion of tongue.
Where is the vallecula located ?
Recess between posterior end of tongue and epiglottis.
Where is the palatine tonsils located ?
Between palatoglossal and palatopharyngeal pillars in tonsils fossa.
What cranial nerve innervated middle and inferior pharyngeal constrictors ?
CNX.
Where is the piriform fossa located ?
Depression either side of laryngeal inlet.
Where are the internal and recurrent laryngeal nerve located ?
Deep to piriform fossa.
What is the internal and recurrent laryngeal nerves a branch of ?
Vagus nerve CNX.
What are the four types of tonsils in Waldeyer’s tonsils ring ?
Palatine, tubal, pharyngeal and lingual.
What are the 3 pharyngeal elevator muscles ?
Palatopharyngeus, stylopharyngeus, salpingopharyngeus.
What is palatopharyngeus elevator muscle innervated by ?
CNX via pharyngeal plexus.
What is salpingopharyngeus elevator muscle innervated by ?
CNX via pharyngeal plexus.
What is stylopharyngeus elevator muscle innervated by ?
Glossopharyngeal nerve CNIX.
