Ch 44: Nasopharynx

Question 1

The roof of the nasopharynx is formed by the

Answer 1

basilar portion of the sphenoid and occipital bones

Question 2

The nasopharynx floor is formed by the

Answer 2

superior surface of the soft palate and nasopharyngeal isthmus

Question 3

Posterior to the torus is the pharyngeal recess otherwise known as the

Answer 3

fossa of Rosenmüller.

Question 4

The posterior wall of the nasopharynx contains the

Answer 4

superior pharyngeal constrictor muscle, pharyngobasilar fascia, and buccopharyngeal fascia

Question 5

The superior pharyngeal constrictor only extends superiorly to the skull base in the midline, and laterally the pharyngobasilar fascia serves to attach the constrictor muscle to the base of the skull at the basiocciput and petrous portion of the temporal bone. This lateral area of muscular deficiency is otherwise known as the

Answer 5

sinus of Morgagni

Question 6

The afferent innervation of the nasopharynx anterior to the pharyngotympanic tube orifice is provided by the /____and, posterior to the tubal orifice, the____

Answer 6

maxillary division of the trigeminal nerve (V2)

glossopharyngeal nerve

Question 7

Motor supply is via the

Answer 7

pharyngeal branches of the glossopharyngeal nerve, vagus nerve, and sympathetic fibers from the superior cervical ganglion

Question 8

The arterial supply of the nasopharynx is provided by

Answer 8

the ascending pharyngeal artery, sphenopalatine artery, and the artery of the pterygoid canal

Question 9

Afferent innervation is by:

Answer 9

anterior to pharyngotympamic tube V2 (maxillary)
posterior to tubal orifice: glossopharyngeal n