Receptor system (Ear) Flashcards
What is the function of Tympanic membrane?
To turn sound waves into vibrations
What are the parts of ossicle?
Malleus, Incus, Stapes
The function of ossicles?
- Amplify the vibration force
- To vibrate the liquid in cochlea
What is the eustachian tube?
A tube that connects the middle ear to nasopharynx
The function of eustachian tube?
To mantain equal pressure in both sides of the eardrums
What is the part where it gives a sense of equilibrium and keeps the body balanced in every position?
Semicircular canals
What does the organ of corti do?
Convert vibrations into electrical signals
Mechanism of breathing?
Sound waves caught by pinna -> Ear drum turns sound waves into vibration -> ossicles vibrate -> cochlea vibrates -> organ of corti converts vibration into electrical signals -> electrical signals transmitted to the brain.
What is otitis media?
An infection in the eustachian tube caused by bacteria/infection
The disease that causes imbalanced fluid in inner ear sacs?
Mernièré’s disease
What is otosclerosis?
Abnormal extension of sponge-like bone growing in the middle ear
Skin cells grow in the wrong places?
Cholesteatoma
Benign tumor in between the inner ear and brain.
Acoustic neuroma
