ENT- anatomy

Question 1

where is the opening for the eustachian tube located

Answer 1

in the nasopharynx

Question 2

where is the location of Kiesselach’s plexus

Answer 2

nasal septum

Question 3

what is the cribriform plate

Answer 3

part of the roof of the nasal cavities that separates the brain from the nose

Question 4

what forms the floor of the nasal cavity and the roof of the mouth that separates the oral cavity from the nasal cavity

Answer 4

hard palate

Question 5

what marks the boundary between the nasopharynx and oropharynx

Answer 5

soft palate

Question 6

the vagus nerve passes out the cranial cavity via what?

Answer 6

the jugular foramen

Question 7

what is the soft, flexible tissue that forms the lateral wing of the nose on either side called? (musgo)

Answer 7

ala

Question 8

what is the groove that runs from the top of the upper lip to the nose called (modfampres)

Answer 8

philtrum

Question 9

what nerve innervates the external skin of the nose

Answer 9

trigeminal nerve (CN V)

Question 10

where is the nasal vestibule located

Answer 10

just inside the nostrils, or external nasal openings

Question 11

which type of epithelium lines the nasal vestibule

Answer 11

squamous stratified epithelium

Question 12

which bones form the nasal conchae

Answer 12

superior and middle- ethmoid bone
inferior- own bone

Question 13

name the 4 pairs of paranasal sinuses

Answer 13

frontal sinuses
ethmoid sinuses
maxillary sinuses
sphenoid sinuses

Question 14

where are the posterior ethmoidal air cells and sphenoid sinuses drained into and via what?

Answer 14

drained into superior meatus of nasal cavity via the sphenoethmoidal recess

Question 15

where are the anterior ethmoidal air cells, frontal sinuses, and maxillary sinuses drained into and via what?

Answer 15

drained into the middle meatus of the nasal cavity via the semiluminar hiatus

Question 16

where are the middle ethmoidal air cells drained into and via what?

Answer 16

drained into the middle meatus of the nasal cavity via the ethmoidal bulla

Question 17

what two structures make up the external ear

Answer 17

the auricle
external auditory meatus

Question 18

name the parts of the tympanic membrane

Answer 18

umbo
pars tensa
pars flaccida
cone of light

Question 19

the external ear is supplied by branches of what artery

Answer 19

the external carotid artery

Question 20

which cranial nerve innervates the tensor tympani muscle

Answer 20

CN V3- reduced noice from chewing

Question 21

which cranial nerve innervates the stapedius muscle

Answer 21

CN VII

Question 22

sensory of nasopharynx/oropharynx mostly from which cranial nerve

Answer 22

CN IX

Question 23

sensory of laryngopharynx mostly from which cranial nerve

Answer 23

CN X

Question 24

general sensation of the tympanic membrane mucosa is conveyed by which cranial nerve

Answer 24

CN IX

Question 25

what nerve innervates the muscles of mastication

Answer 25

CN V3- mandibular nerve

Question 26

which muscles of mastication close the mouth

Answer 26

masseter temporalis medial pterygoid

Question 27

which muscle of mastication opens the mouth

Answer 27

lateral pterygoid

Question 28

name the four extrinsic muscles of the tongue

Answer 28

hyoglossus styloglossus palatoglossus genioglossus

Question 29

which cranial nerves innervate the extrinsic muscles of the tongue

Answer 29

hyoglossus, styloglossus, genioglosssus- CN XII (hypoglossal nerve) palatoglossus- CN X (vagus nerve)

Question 30

what are the four pairs of intrinsic muscles of the tongue

Answer 30

superior longitudinal inferior longitudinal vertical transverse

Question 31

which nerve innervates the intrinsic muscles of the tongue

Answer 31

hypoglossal nerve (CN VII)

Question 32

which nerves innervates the salivary glands

Answer 32

parotid- CN IX (glossopharyngeal) sublingual and submandibular- CN VII and CN V3