Chapter 16 Exam 5 Flashcards
(131 cards)
the visible external ear
auricle
auricle AKA
pinna
sticky wax secreted by glands in the external auditory canal
cerumen
coiled structure of the inner ear associated with the sense of hearing
cochlea
tube that connects the middle ear to the nasopharynx and equalizes the air pressure between the middle ear; throat; and outside of the body
eustachian tube
second bone of the middle ear
incus
first bone of the middle ear
malleus
bony projection of the temporal bone behind the ear
mastoid process
the three tiny bones of the middle ear
ossicles
ossicles AKA
ossicular chain
three separate but intertwined canals in the inner ear that are orientated in different planes; help the body keep its balance
semicircular canals
third bone of the middle ear
stapes
stapes AKA
stirrup
membrane that divides the external ear from the middle ear
tympanic membrane
tympanic membrane AKA
eardrum
structure at the entrance to the inner ear; filled with fluid
vestibule
cranial nerve VIII that conducts sensory impulses from the semicurcular canals and the cochlea to the medulla oblongata of the brainstem
vestibulocochlear nerve
group of small air cells in the ethmoid bone between the nose and the eyes
ethmoid sinuses
sinuses above each eyebrow in the frontal bone of the cranium
frontal sinuses
larges of the sinuses
maxillary sinuses
hollow cavity within a cranial or facial bone; lined with mucosa
sinus
sinuses in the sphenoid bone posterior to the nasal cavity and near the pituitary gland of the brain
sphenoid sinuses
one nostril; the opening into the nasal cavity
naris
hollow area inside the nose that is formed by the ethmoid and maxillary bones
nasal cavity