The ear Flashcards
The ear consists of 3 major region, namely :
Outer ear, middle ear and the inner ear
What is the function of the outer ear?
The outer ear picks up the sound[external]
What is the function of the middle ear?
The middle ear transmits the sound to the inner ear via the eardrum and three ossicles (incus, malleus, stapes)
What is the function of the inner ear?
The inner ear transforms the sound into nervous impulses via the cochlea and maintains balance via the semi-circular canals
Which structures surround the ear and help its function?
The eustachian tube, tegmen tympani, and the labyrinth
What does the latter structure of the ear help with?
The latter structure also helps to maintain the overall balance of the body.
The most important arteries supplying the ear are :
The external carotid, maxillary, and basilar arteries
The main nerves of the ear are :
The facial (CN VII) and vestibulocochlear (CN VIII) cranial nerves.
