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19 Cards in this Set

  • Front
  • Back
Anatomically, the ear is divided into which three regions?
1) The external ear
2) The middle ear
3) The internal ear
Name the three components of the external ear.
1) The auricle (also called the pinna)
2) The external auditory canal
3) The tympanic membrane (also called the eardrum)
What's another name for the eardrum?
Tympanic membrane
Give the scientific name for earwax.
Name the specialized sweat glands that secrete wax into the external auditory canal.
Ceruminous glands
Which bone surrounds the middle ear?
The middle ear is a small, air-filled cavity in the petrous portion of the temporal bone.
What are the auditory ossicles?
The auditory ossicles are the three bones of the middle ear: the malleus, the incus, and the stapes.
What's the scientific name for the three bones of the middle ear?
Auditory ossicles
Name the three bones of the middle ear, from lateral to medial.
1) Malleus
2) Incus
3) Stapes
What does the base or the footplate of the stapes sit in?
The oval window
Which two "windows" are located in the middle ear?
Oval window (superior, covered by stapes)

Round window (inferior, covered by secondary tympanic membrane)
The secondary tympanic membrane overlies which opening?
Round window
What's another name for the auditory tube?
Eustachian tube
Which opening connects the middle ear with the nasopharynx?
Eustachian tube
Which part of the ear communicates with the nasopharynx.
The middle ear via the eustachian tube
What is another name for the internal ear?
The labyrinth
The labyrinth refers to...
The inner ear
What are the two main structural divisions of the inner ear?
Boby labyrinth (petrous temporal bone)
Membranous labyrinth
What are the three main regions of the inner ear?
Semicircular canals