Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
Contains both structures for both hearing and equilibrium and is divided into 3 regions: the outer, middle, and inner ear.
|
Ear
|
|
|
Begins with the auricle, a shell shaped structure composed of elastic cartilage that surrounds the opening to the external auditory canal.
|
Outer ear
|
|
|
A shell shaped structure composed of elastic cartilage that surrounds the opening to the external auditory canal.
|
Auricle
|
|
|
Extends about 2.5 cm into the temporal bone, where it ends in the tympanic membrane, which separates the outer ear from the middle ear.
|
External Auditory Canal
|
|
|
Where the external auditory canal ends at and it separates the outer ear from the middle ear.
|
Tympanic Membrane
|
|
|
A small air-filled cavity within the temporal bone that houses tiny bones called the auditory ossicles-the malleus,incus, and stapes.
|
Middle ear
|
|
|
Includes the malleus,incus, and stapes and transmit vibrations from the tympanic membrane to the inner ear through a structure called the oval window.
|
Auditory Ossicles
|
|
|
Connects the middle ear to the pharynx (throat) and equalizes pressure in the middle ear.
|
Pharyngotympanic tube
|
|
|
Contains sense organs for hearing and equilibrium and consists of cavities collectively called the bony labyrinth that are filled with a fluid called perilymph.
|
Inner Ear
|
|
|
Cavities in the inner ear that are filled with a fluid called perilymph and has 3 regions: vestibule, Semicircular canals, and Cochlea.
|
Bony Labyrinth
|
|
|
Bony Labyrinth filled with the fluid called?
|
Perilymph
|
|
|
Within the perilymph is a series of membranes called ?
|
Membranous Labyrinth
|
|
|
The membranous labyrinth contains a thicker fluid called?
|
Endolymph
|
|
|
Part of the bony labyrinth is an egg-shaped bony cavity that houses two structures responsible for equilibrium, the saccule and utricle.
|
Vestibule
|
|
|
These two structures are housed in the vestibule and transmit impulses down the vestibular portion of the vestibulocochlear nerve.
|
Saccule and Utricle
|
|
|
A region in the bony labyrinth that house these canals that are right angles to one another and house semicircular ducts and the ampulla, which work together with organs of the vestibule to maintain equilibrium.
|
Semicircular canals
|
|
|
They are both housed in the semicircular canals and work togther with the organs of the vestibule to mantain equilibrium. Their orientation allows them to sense rotational movements of the head and body. Like the saccule and utricle they transmit impulses down the vestibular portion of the vestibulocochlear nerve.
|
Semicircular duct and the Ampulla
|
|
|
A region of the bony labyrinth.It is a spiral bony canal that contains the organ of Corti, whose specialized hair cells transmit sound impulses to the cochlear portion of the vestibulocochlear nerve.
|
Cochlea
|
|
|
It is inside the cochlea and its specialized hair cells transmit sound impulses to the cochlear portion of the vestibulocochlear nerve.
|
Organ of Corti
|
|
|
Part of the organ of Corti that transmit sound impulses to the cochlear portion of the vestibulocochlear nerve.
|
Hair cells
|
