As we all know, the human ear is a vital organ of the body's sensory system. To be precise, the ear is the organ of the auditory system, which is responsible for the sense of hearing. It performs a major function receives sound waves and send signals to the brain. In this way, we can detect and interpret different types of sound. Besides hearing, our ears are important for positioning the head and keep the balance of the Agency.
Part of the Human Ear
Parts of the human ear
Parts of the human ear
The three main parts of the human ear is the outer ear, middle ear and inner ear. Work of the human ear is such that the sound waves to travel from the outer ear to the middle ear, which is then passed on to the inner ear in the form of a compression wave. In the inner ear, compressional wave is converted into electrical impulses that are perceived by the brain. In this way, we can hear and distinguish different types of sounds. Let us discuss briefly about the different parts of the human ear and their role in hearing.
Outer ear: The outer ear or outer ear is the visible part of the ear, which serves as a protective organ for the eardrum. It collects and guides the sound waves into the middle ear. The outer ear consists of the following two sections.
Ear Flap (Pinna) - Sound waves enter the ear through the ear flap or pinna.
Ear channel (meatus) - The ear canal is about 2 cm. It amplifies sound waves and channelizes them to the middle ear. Sweat glands are present in this channel, which secrete earwax.
Middle Ear: Ear center, located between the outer ear and the inner ear, feel the sound waves from the outer ear in the form of pressure waves. The middle ear is a cavity filled with air and consists of the following sections.
The eardrum (tympanic membrane) - The eardrum is a thin membrane that acts as a partition between the outer ear and the middle ear. Vibrating as soon as it receives the sound waves, and convert sound energy into mechanical energy.
Hammer (Malleus) - This is a small bone, which is located next to the eardrum. Because it is located adjacent to the eardrum, causing vibrations from the eardrum to vibrate hammer.
Anvil (incus) - Anvil is another small bone at the side of the hammer, it vibrates in response to vibration hammer.
Stirrup (stapes) - Similar to the hammer and the anvil, stirrup is small bones in the middle ear. Finally, also vibrates and passes compressional waves to the inner ear.
The inner ear (Labyrinth): The inner ear, as the name suggests, is the deepest part of the ear. It is filled with a substance such as water and consists of both hearing and balance organs. The inner ear consists of the following sections.
Cochlear (cochlea) - The cochlea or spiral tube is coiled structure that can be stretched about 3 cm. Cochlear membrane layer consists of many nerve cells. Nerve cells hairlike respond differently to various frequencies of vibration, which eventually leads to the generation of listrik.Koklea is central auditory impulses from the inner ear, which translates liquid organ sound vibrations into auditory impulses that the brain can understand. This happened in the organ of Corti, a structure consisting of fine hair all over the cochlea to vibrate and transmit electrical signals through the nervous system.
When sound waves enter the ear, they first met eardrum. Vibration energy transfer them to the eardrum, which vibrates in response. Motion is translated through a series of small bones in the ear to the cochlea. Because the eardrum is much larger than this organ, which is more powerful vibrations, which allows them to pass through the liquid in the center of hearing. These waves move the organ of Corti's hair, and they created the impulse trip to the hearing center in the brain.
Tinnitus occurs when the organ of Corti hair set up some sort of feedback. When the sound is very faint, these hairs are sometimes amplify sound to blast vibration in order to improve hearing. Sometimes, this causes all of the hair to begin to vibrate, creating the sensation of ringing sound. Under normal circumstances, the brain is able to shut down this process off after 10 or 15 seconds, but in chronic tinnitus, it may be a recurring problem.
Semicircular canals - This is a loop containing a liquid, which is attached to the cochlea and assist in maintaining balance.
Auditory nerve - these electrical impulses, which is produced by nerve cells, which are then transmitted to the brain.
In this way, different parts of the human ear perform certain functions that contribute to the overall function of the ear. Any damage and / or disturbance in the ear can cause ear problems and hearing loss (deafness).
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