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Inner Ear
Middle Ear
Outer Ear
Middle Ear
Inner Ear Membranes
100
A cavity filled with endolymph inside the cochlea, located in between the scala tympani and the scala vestibuli. This also houses the Organ of corti
What is the scala media
100
The stirrup-shaped small bone which is attached to the incus laterally and to the oval window medially
What is the stapes
100
The skin-covered cartilage connected by ligaments, with vestigial intrinsic muscles
What is the pinna / auricle
100
The smallest skeletal muscle in the human body that stabilizes the stapes; innervated by the facial nerve (CN VII)
What is the stapedius muscle
100
Divides scala vestibuli from scala media and is a single-cell layer
What is the Reisners membrane
200
This filters, distributes, and traduces sound. This organ is also a snail shape that turns 2 3/4 times.
What is the cochlea
200
The hammer-shaped small bone which connects with the incus and is attached to the inner surface of the eardrum
What is the malleus
200
The bowl-shaped part of the pinna (the external) nearest the ear canal
What is the concha
200
The larger of the two muscles of the tympanic cavity whose role is to dampen sounds; innervated by the trigeminal nerve (CN V)
What is the tensor tympani
200
Divides scala media from scala tympani, undergoes wave motion.
What is the Basilar membrane
300
The space that encases the inner ear. The cavities in it contain fludids and the membranous labyrinth
What is bony labyrinth
300
The anvil-shaped small bone that connects the malleus to the stapes
What is the incus
300
The tube running from the outer ear to the middle ear that extends from the pinna to the eardrum and is about 2.5 cm in length and .7 cm in diameter
What is the external auditory meatus (ear canal)
300
The hard-walled cavity within the temporal bone
What is the tympanic cavity
300
This membrane sits above organ of Corti, in contact with tallest OHC stereocilia.
What is the tectorial membrane?
400
Provides support for the scalae, like a spiral ramp and connects to the basilar membrane to form the floor of the scala media.
What is the modiolus
400
The thin membrane that separates the external ear from the middle ear that transmits sound from the air to the ossicles inside the middle ear.
What is the tympanic membrane / ear drum
400
The small pointed eminence of the external ear, situated in front of the concha, and projecting backward over the meatus
What is the tragus
400
the medial wall of the middle ear where vibratory energy is transmitted to the fluid filled cochlea of the inner ear
What is the oval window
400
This bulges out as stapes pushes in, and vice versa. It's located on the scala tympani
What is the round window
500
The organ in the inner ear auditory sensory cells, or hair cells.
What is the Organ of Corti
500
The 35-38 mm long tube that links the pharynx to the middle ear that facilitates drainage of the tympanic membrane
What is the Eustachian tube
500
On the pinna, a curved prominence of cartilage, parallel with and in front of the helix
What is the antihelix
500
The boundaries of the middle ear
What are the tympanic membrane and oval window
500
Located on the lateral wall of scala media; the “battery” of the ear
What is the stria vascularis?