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Structure of the Ear
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STRUCTURE OF The EAR
PINNA
PINNA
The outer ear is composed of the visible part of the ear (pinna) and the ear canal. The cup-shaped pinna (PIN-uh) gathers sound waves from the environment and directs them into the ear canal.
Auditory Canal
AUDITORY CANAL
The ear canal functions as an entryway for sound waves, which get propelled toward the eardrum. When sounds enter the middle ear, they are transmitted to tiny bones called the ossicles, which consist of the stapes, the incus, and the malleus.
Ear Drum
EARDRUM
Your eardrum is a really important part of your ear. Sound waves travel through the ear canal to reach the eardrum. The eardrum is a thin flap of skin that is stretched tight like a drum and vibrates when sound hits it. These vibrations move the tiny bones of the middle ear, which send vibrations to the inner ear.
STIRRUP
STIRRUP
Stirrup (stapes) — attached to the membrane-covered opening that connects the middle ear with the inner ea
Hammer
HAMMER
The hammer is the part of the middle ear ossicle. It is also called a malleus. They help in transmission of soundwaves. This increases the efficiency of sound waves.
COCHLEA
COCHLEA
The cochlea is a hollow, spiral-shaped bone found in the inner ear that plays a key role in the sense of hearing and participates in the process of auditory transduction. Sound waves are transduced into electrical impulses that the brain can interpret as individual frequencies of sound
EUSTACHIAN TUBE
The Eustachian tube is an opening that connects the middle ear with the nasal-sinus cavity. This tube helps to: Balance pressure in the middle ear (commonly felt as your ears popping) Drain fluid from the middle ear.
VESTIBULE
VESTIBULE
The primary function of the vestibule is to respond to changes in the position of the head with respect to gravity (linear acceleration). consisting of three canals. The three tiny, fluid-filled tubes in the inner, ear help you keep your balance.
Auditory Nerve
AUDITORY NERVE
- The auditory nerve is responsible for sending vibrations (sound signals) to the brain.
- The auditory nerve, located in the inner ear, behind the cochlea
- It is one of the many pieces that make up the auditory system, which enables effective hearing.