Pharynx, Palate and Tonsils

Question 1

what is the length of the pharynx and its location?

Answer 1

12-15cm and is located at the base of the skull to c6 vertebrae.

Question 2

what are the different parts of the pharynx and their location

Answer 2

nasopharynx - base of the skull to c1
oropharynx - c1 to c3
laryngopharynx - c3 to c6.

Question 3

which part of the inferior constrictor makes up the Upper Esophageal Sphincter?

Answer 3

Cricopharyngeal

Question 4

what are the longitudinal muscles of the pharynx?

Answer 4

stylopharyngeus, salpingopharyngeus, palatopharyngeus and the passavant’s ridge

Question 5

what are the contents of the superior constrictor gap?

Answer 5

stylopharyngeus, styloglossus, lingual and glossopharyngeal nerves.

Question 6

what are the contents of the inferior constrictor gap?

Answer 6

thyroid membrane, superior laryngeal artery and internal laryngeal artery.

Question 7

what are the 5 pairs of muscles on the soft palate?

Answer 7

levator veli palatini
tensor veli palatini
palatopharyngeus
palatoglossus
musculus uvulae

Question 8

what innervates the nasopharynx, oropharynx and laryngopharynx?

Answer 8

maxillary nerve of the trigeminal nerve
glossopharyngeal nerve
recurrent laryngeal nerve

Question 9

what causes Killian’s dehiscence? where is it located?

Answer 9

it is caused by the Zenker’s Diverticulum and is located between the thyropharyngeal and cricopharyngeal muscles.

Question 10

what is the main arterial supply to tonsil?

Answer 10

tonsillar artery which is a branch of the facial artery.