The Ear Flashcards
Ossicles of the ear
- Malleus
- Incus
- Stapes
Which is the most exterior bone of the ear in contact with the tympanic membrane
The malleus
Which of the bones is in contact with the oval window?
The stapes
What kind of joints are found between the ossicles?
Synovial
Which muscle connect the malleus to the Eustachian tube
The tensor tympani
Which muscle connects to the stapes
The stapedius
What is the function of the tensor tympani?
It increases tension of the tympanic membrane
What is the function of the stapedius?
It dampens the large vibrations of the stapes to prevent damage to the oval window.
Which two parts of cavity Does the middle ear communicate with?
The Nasopharynx and the mastoid antrum
Which bone are the middle and inner ear part of?
The petrous part of the temporal bone
What are the names of the two labyrinths
Bony
Membranous
What is the name of the fluid found inside the bony labyrinth?
The perilymph
What is the name of the fluid found inside the membranous labyrinth?
The endolymph
What is the function of the Cochlea
Detection of sound
What is the function of the semi-circular canals?
Balance and posture
