L10+11: Pharynx 1 and 2

Question 1

from where to where does the pharynx extend ?

Answer 1

base of the skull to C6

Question 2

what does the lateral wall of the nasopharynx contain ?

Answer 2

naso-pharngeal tonsil

opening of auditory tube and tubal elevation

salpingopharengeal fold

levator veli palateni

pharengeal recess

Question 3

nasopharengeal tonsil is most prominent in__

Answer 3

children

Question 4

enlargement of the nasopharyngeal tonsil due to inflammation is known as?

Answer 4

adenoid : causes airflow obstruction

Question 5

the oropharynx extends from ___

Answer 5

the soft palate to the upper border of epiglottis ( c3 and c2)

Question 6

what tonsil is present in the lateral wall of the oropharynx and where is it situated ?

Answer 6

palatine tonsil in the tonsillar foass: palatoglossal arch anteriorly and palatopharngeal arch posteriorly

Question 7

what are the borders of the tonsillar fossa?

Answer 7

palatoglossal arch anteriorly

palatopharyngeal arch posteriorly

Question 8

from where to where does the laryngopharynx extend ?

Answer 8

from upper border of epiglottis to lower border of cricoid (c3-c6)

Question 9

what is present in the lateral wall of the laryngopharynx ?

Answer 9

piriform fossa

Question 10

what are the boundaries of the piriform fossa?

Answer 10

aryepiglottic fold medially and thyroid membrane and cartilage laterally

Question 11

What nerve supplies the piriform fossa ?

Answer 11

Internal laryngeal nerve

Question 12

Pharynx 2 ————————-

Question 13

what are the constrictor muscles of the pharynx ?

Answer 13

superior , middle , and inferior constrictor muscles

Question 14

what are the longitudinal muscles of the pharynx ?

Answer 14

stylopharyngeus
palatophayngeus
salpingopharyngeus
- mexican stylish plato

Question 15

what are the 2 parts of the inferior constrictor ?

Answer 15

thyropharyngeus

cricopharyngeus

Question 16

what is the junction between the 2 parts of the inferior constrictor called?

Answer 16

dehiscence of killian (weakest partf of pharynx)

Question 17

what is the area between the superior constrictor and the base of the skull called ?

Answer 17

sinus of morgagni

Question 18

what are the structures passing through the sinus of morgagni ?

Answer 18

auditory tube
levator veli palatini
ascending pharyngeal artery

Question 19

what is the nerve supply of all muscles of the pharynx ?

Answer 19

cranial part of accessory nerve through pharyngeal plexus

except for the stylopharnegues which is supplies by the glossopharngeal nerve

Question 20

what do the longitudinal muscles and the constrictor muscles of the pahrynx do ?

Answer 20

Longitudinal muscles:
They elevate the larynx and shorten the pharynx during deglutition.

Constrictors:
Contract reflexly during deglutition and induce a wave of peristalsis.

Question 21

what structures pass in between the superior constrictor and the middle constrictor?

Answer 21

stylopharengeus and glossopharengeal nerve

Question 22

what structures pass between the middle constrictor and the inferior constrictor ?

Answer 22

internal laryngeal nerve and superior laryngeal vessels

Question 23

what structures pass under the inferior constrictor ?

Answer 23

reccurent laryngeal nerve and inferior laryngeal vessels

Question 24

what is the motor supply of the inferior constrictor

?

Answer 24

same supply as base and apex of thyroid gland : external laryngeal nerve and reccurent laryngeal nerve

Question 25

what is the sensory supply of the nasopharynx ?

Answer 25

maxillary nerve

Question 26

what is the sensory supply of the oropharynx ?

Answer 26

glossopharyngeal nerve

Question 27

what is the sensory supply of the laryngopharynx ?

Answer 27

internal laryngeal nerve