ENT- anatomy Flashcards
where is the opening for the eustachian tube located
in the nasopharynx
where is the location of Kiesselach’s plexus
nasal septum
what is the cribriform plate
part of the roof of the nasal cavities that separates the brain from the nose
what forms the floor of the nasal cavity and the roof of the mouth that separates the oral cavity from the nasal cavity
hard palate
what marks the boundary between the nasopharynx and oropharynx
soft palate
the vagus nerve passes out the cranial cavity via what?
the jugular foramen
what is the soft, flexible tissue that forms the lateral wing of the nose on either side called? (musgo)
ala
what is the groove that runs from the top of the upper lip to the nose called (modfampres)
philtrum
what nerve innervates the external skin of the nose
trigeminal nerve (CN V)
where is the nasal vestibule located
just inside the nostrils, or external nasal openings
which type of epithelium lines the nasal vestibule
squamous stratified epithelium
which bones form the nasal conchae
superior and middle- ethmoid bone
inferior- own bone
name the 4 pairs of paranasal sinuses
frontal sinuses
ethmoid sinuses
maxillary sinuses
sphenoid sinuses
where are the posterior ethmoidal air cells and sphenoid sinuses drained into and via what?
drained into superior meatus of nasal cavity via the sphenoethmoidal recess
where are the anterior ethmoidal air cells, frontal sinuses, and maxillary sinuses drained into and via what?
drained into the middle meatus of the nasal cavity via the semiluminar hiatus
where are the middle ethmoidal air cells drained into and via what?
drained into the middle meatus of the nasal cavity via the ethmoidal bulla
what two structures make up the external ear
the auricle
external auditory meatus
name the parts of the tympanic membrane
umbo
pars tensa
pars flaccida
cone of light
the external ear is supplied by branches of what artery
the external carotid artery
which cranial nerve innervates the tensor tympani muscle
CN V3- reduced noice from chewing
which cranial nerve innervates the stapedius muscle
CN VII
sensory of nasopharynx/oropharynx mostly from which cranial nerve
CN IX
sensory of laryngopharynx mostly from which cranial nerve
CN X
general sensation of the tympanic membrane mucosa is conveyed by which cranial nerve
CN IX
what nerve innervates the muscles of mastication
CN V3- mandibular nerve
which muscles of mastication close the mouth
masseter
temporalis
medial pterygoid
which muscle of mastication opens the mouth
lateral pterygoid
name the four extrinsic muscles of the tongue
hyoglossus
styloglossus
palatoglossus
genioglossus
which cranial nerves innervate the extrinsic muscles of the tongue
hyoglossus, styloglossus, genioglosssus- CN XII (hypoglossal nerve)
palatoglossus- CN X (vagus nerve)
what are the four pairs of intrinsic muscles of the tongue
superior longitudinal
inferior longitudinal
vertical
transverse
which nerve innervates the intrinsic muscles of the tongue
hypoglossal nerve (CN VII)
which nerves innervates the salivary glands
parotid- CN IX (glossopharyngeal)
sublingual and submandibular- CN VII and CN V3
