Ch 49: Hypopharynx

Question 1

As general landmarks, the superior border of the hypopharynx is
demarcated by the ____and the inferior border by the ____

Answer 1

As general landmarks, the superior border of the hypopharynx is
demarcated by the hyoid bone and the inferior border by the cricoid cartilage.

Question 2

there are three primary anatomic
subsites within the hypopharynx: _____

Answer 2

there are three primary anatomic
subsites within the hypopharynx: the bilateral pyriform sinuses, the postcricoid
region, and the posterior pharyngeal wall

Question 3

Superiorly, the pyriform sinuses are surrounded by the thyrohyoid membrane through
which passes the____

Answer 3

Superiorly, the sinuses are surrounded by the thyrohyoid membrane through
which passes the internal branch of the superior laryngeal nerve; if involved results to referred otalgia

Question 4

Sensory innervation of the hypopharynx is provided by the ______ as well as fibers deriving from the glossopharyngeal
nerve

Answer 4

Sensory innervation of the hypopharynx is provided by the internal branch of
the superior laryngeal nerve as well as fibers deriving from the glossopharyngeal
nerve

Question 5

Primary motor supply is via:

Answer 5

recurrent laryngeal nerve and pharyngeal plexus

Question 6

Arterial supply:

Answer 6

branches of ECA: sup thyroid arteries, ascending pharyngeal arteries, lingual arteries

Question 7

Most commonly involved lymph node

Answer 7

subdigastric node