Week 9 - Pharynx, Hard & Soft Palate

Question 1

What bone forms the anterior 2/3s of the bony palate ?

Answer 1

Palatine processes of the maxillae.

Question 2

What bone forms the posterior 1/3 of the bony palate ?

Answer 2

Horizontal plates of palatine bone.

Question 3

What is the function of the palatine rugae ?

Answer 3

Help tongue with movement of food.

Question 4

What neurovascular structures run within the incisive canal ?

Answer 4

Nasopalatine nerve and greater palatine artery.

Question 5

Where is the incisive fossa located ?

Answer 5

Posterior of central incisors.

Question 6

Where is the greater palatine foramen located ?

Answer 6

Posterior and medially to third molar.

Question 7

Origin of levator veli palatini ?

Answer 7

Pharyngotympanic tube and temporal bone.

Question 8

Insertion of levator veli palatini ?

Answer 8

Palatine aponeurosis.

Question 9

Action of levator veli palatini ?

Answer 9

Support tensor and opens auditory tube during swallowing for pressure exchange.

Question 10

Origin of tensor veli palatini ?

Answer 10

Scaphoid fossa, spine of sphenoid and pharyngotympanic tube.

Question 11

Insertion of tensor veli palatini ?

Answer 11

Palatine aponeurosis.

Question 12

Action of tensor veli palatini ?

Answer 12

Tenses soft palate.

Question 13

Origin of palatopharyngeus ?

Answer 13

Hard palate and palatine aponeurosis.

Question 14

Insertion of palatopharyngeus ?

Answer 14

Lateral wall of pharynx.

Question 15

Origin of palatoglossus ?

Answer 15

Palatine aponeurosis.

Question 16

Insertion of palatoglossus ?

Answer 16

Posterolateral surface of the tongue.

Question 17

Action of palatoglossus ?

Answer 17

Draws tongue and soft palate down.

Question 18

Origin of musculus uvulae ?

Answer 18

Posterior nasal spine and palatine aponeurosis.

Question 19

Insertion of musculus uvulae ?

Answer 19

Uvula.

Question 20

Blood supply to hard palate ?

Answer 20

Greater palatine artery.

Question 21

Blood supply to soft palate ?

Answer 21

Lesser palatine artery.

Question 22

What are the greater and lesser palatine arteries branches of ?

Answer 22

Maxillary artery of external carotid artery.

Question 23

What are the greater and lesser palatine nerves and the nasopalatine nerve a branch of ?

Answer 23

Maxillary division of trigeminal nerve (CNV2).

Question 24

General sensory innervation of soft palate ?

Answer 24

Lesser palatine nerve.

Question 25

General sensory innervation of hard palate and gingivae to first premolar ?

Answer 25

Greater palatine nerve.

Question 26

General sensory innervation of anterior gingivae and mucosa ?

Answer 26

Nasopalatine nerve.

Question 27

Motor control to the muscles of the soft palate ?

Answer 27

Pharyngeal plexus of vagus nerve (CNX). Except tensor veli palatini - medial pterygoid nerve of mandibular branch of trigeminal nerve (CNV3).

Question 28

Name superior and inferior boundary of nasopharynx.

Answer 28

Posterior border of nasal septum. Soft palate.

Question 28

Name superior and inferior boundary of nasopharynx.

Answer 28

Posterior border of nasal septum. Soft palate.

Question 29

Name superior and inferior boundary of oropharynx.

Answer 29

Posterior margin of soft palate. Epiglottis.

Question 30

Name superior and inferior boundary of larngopharynx.

Answer 30

Superior border of epiglottis. Inferior border of cricoid cartilage.

Question 31

What type of cartilage is the epiglottis formed by ?

Answer 31

Elastic.

Question 32

Where are the lingual tonsils located ?

Answer 32

Behind vallate papillae on posterior portion of tongue.

Question 33

Where is the vallecula located ?

Answer 33

Recess between posterior end of tongue and epiglottis.

Question 34

Where is the palatine tonsils located ?

Answer 34

Between palatoglossal and palatopharyngeal pillars in tonsils fossa.

Question 35

What cranial nerve innervated middle and inferior pharyngeal constrictors ?

Answer 35

CNX.

Question 36

Where is the piriform fossa located ?

Answer 36

Depression either side of laryngeal inlet.

Question 37

Where are the internal and recurrent laryngeal nerve located ?

Answer 37

Deep to piriform fossa.

Question 38

What is the internal and recurrent laryngeal nerves a branch of ?

Answer 38

Vagus nerve CNX.

Question 39

What are the four types of tonsils in Waldeyer's tonsils ring ?

Answer 39

Palatine, tubal, pharyngeal and lingual.

Question 40

What are the 3 pharyngeal elevator muscles ?

Answer 40

Palatopharyngeus, stylopharyngeus, salpingopharyngeus.

Question 41

What is palatopharyngeus elevator muscle innervated by ?

Answer 41

CNX via pharyngeal plexus.

Question 42

What is salpingopharyngeus elevator muscle innervated by ?

Answer 42

CNX via pharyngeal plexus.

Question 43

What is stylopharyngeus elevator muscle innervated by ?

Answer 43

Glossopharyngeal nerve CNIX.