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Auditory System PowerPoint Presentation

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Description : Check out this medical PowerPoint presentation titled "Auditory System" by Lamon Willis.

This medical PowerPoint presentation is about the auditory system, the system responsible for the processing of sound waves and the perception of hearing. It is a complex system that involves the ears, the brainstem, and the brain.

The auditory system is composed of three main parts: the outer ear, the middle ear, and the inner ear.

The outer ear consists of the pinna (the visible part of the ear) and the ear canal. The pinna collects sound waves and directs them into the ear canal, which then leads to the eardrum.

The middle ear consists of the eardrum and three small bones called ossicles (the malleus, incus, and stapes). When sound waves reach the eardrum, they cause it to vibrate, which in turn causes the ossicles to vibrate. The ossicles amplify the sound waves and transmit them to the inner ear.

The inner ear consists of the cochlea and the vestibular system. The cochlea is a snail-shaped structure filled with fluid and tiny hair cells. When the ossicles transmit sound waves to the cochlea, the fluid inside the cochlea moves and stimulates the hair cells. The hair cells then send electrical signals to the brain, which the brain interprets as sound.

The vestibular system, located in the inner ear, is responsible for our sense of balance and spatial orientation. It consists of three semicircular canals and two otolith organs, which detect movement and gravity.

The auditory system also involves several neural pathways in the brainstem and the auditory cortex in the brain, which are responsible for processing and interpreting sound information.

Tags : Auditory System, sound waves, perception of hearing, the outer ear, the middle ear, and the inner ear

Published on : Jun 23, 2023 | Views : 979 | Downloads : 1

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Slide 1-

Auditory System Lamon Willis
Slide 2-

Anatomy
Slide 3-

Anatomy External ear tragus auricle or pinna
Slide 4-

Anatomy Middle ear Tympanic membrane Ossicles – malleus, incus, stapes Eustachian tube Oval window
Slide 5-

Anatomy Inner ear Labyrinth Membranous labyrinth – hair cells Vibrations into nerve impulse Cochlea, Vestibule, Semicircular canal Balance – utricle, saccule Oval window, round window
Slide 6-

CPT Procedures Removal foreign body from external auditory canal (69200-69205) - both ears (69210)
Slide 7-

CPT Procedures Middle Ear (69400-69799) Tympanostomy (69433-69436) Mastoidectomy; complete (69502) modified radical (69505) radical (69511) Tympanoplasty (69635-69646)
Slide 8-

CPT Procedures Inner Ear (69801-69949) Labyrinthectomy (69905) Temporal Bone, Middle Fossa Approach (69950-69979) Microsurgery