LABORATORY OUTLINE ANATOMY OF THE EAR
SECTION I
– identify and know the functions of each below: 1.
pinna or auricle (outer/external ear) 2.
external auditory canal 3.
cerumi nous glands 4.
tympanic membrane (eardrum) 5.
tympanic cavity (middle ear) 6.
ossicles : a.
malleus (hammer) b.
incus (anvil) c.
stapes (stirrup) 7.
oval window vs round window 8.
pharyngotympanic tube (auditory or eustachian tube) 9.
inner / internal ear 10.
osseous (bony) labyrinth (fluid-filled chambers): a.
cochlea / organ of Corti b.
vestibule c.
semicircular canals SECTION I
– identify structures from the Model of the Human Ear below: 1.
pinna / auricle 2.
lobule 3.
external auditory canal 4.
tympanic membrane 5.
malleus / incus / stapes 6.
oval window 7.
cochlea 8.
vestibule 9.
semicircular canals 10.
vestibulocochlear nerve (CN VIII) 11.
pharyngotympanic / auditory / eustachian tube
