sound reception system in the inner ear
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In order to hear a sound, the auditory system must accomplish three basic tasks. First, it must deliver the acoustic stimulus to the receptors; second, it must convert the stimulus from pressure changes into electrical signals; and third, it must process these electrical signals so that they can efficiently indicate the qualities of the sound source, such as frequency (pitch), amplitude (loudness, volume), and location.
The human ear can be divided into three functional segments:
the outer ear: collects sound energy from the environment and sends it to the eardrum
the middle ear: transduces the mechanical pressure signals from the ear drum into electrical signals
the inner ear: interprets the electrical signals from the middle ear using hair cells
In mammals, sound waves are collected by the external, cartilaginous outer part of the ear called the pinna. They then travel through the auditory canal, causing vibration of the thin diaphragm called the tympanum, or ear drum, the innermost part of the outer ear . Interior to the tympanum is the middle ear, which holds three small bones called the ossicles ("little bones"), that transfer energy from the moving tympanum to the inner ear. The three ossicles are the malleus (also known as the hammer), the incus (the anvil), and stapes (the stirrup). The three ossicles are unique to mammals; each plays a role in hearing. The malleus attaches at three points to the interior surface of the tympanic membrane. The incus attaches the malleus to the stapes. In humans, the stapes is not long enough to reach the tympanum. If we did not have the malleus and the incus, then the vibrations of the tympanum would never reach the inner ear. These bones also function to collect force and amplify sounds. The ear ossicles are homologous to bones in a fish mouth; the bones that support gills in fish are thought to be adapted for use in the vertebrate ear over evolutionary time. Many animals (frogs, reptiles, and birds, for example) use the stapes of the middle ear to transmit vibrations to it.
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The human ear can be divided into three functional segments:
the outer ear: collects sound energy from the environment and sends it to the eardrum
the middle ear: transduces the mechanical pressure signals from the ear drum into electrical signals
the inner ear: interprets the electrical signals from the middle ear using hair cells
In mammals, sound waves are collected by the external, cartilaginous outer part of the ear called the pinna. They then travel through the auditory canal, causing vibration of the thin diaphragm called the tympanum, or ear drum, the innermost part of the outer ear . Interior to the tympanum is the middle ear, which holds three small bones called the ossicles ("little bones"), that transfer energy from the moving tympanum to the inner ear. The three ossicles are the malleus (also known as the hammer), the incus (the anvil), and stapes (the stirrup). The three ossicles are unique to mammals; each plays a role in hearing. The malleus attaches at three points to the interior surface of the tympanic membrane. The incus attaches the malleus to the stapes. In humans, the stapes is not long enough to reach the tympanum. If we did not have the malleus and the incus, then the vibrations of the tympanum would never reach the inner ear. These bones also function to collect force and amplify sounds. The ear ossicles are homologous to bones in a fish mouth; the bones that support gills in fish are thought to be adapted for use in the vertebrate ear over evolutionary time. Many animals (frogs, reptiles, and birds, for example) use the stapes of the middle ear to transmit vibrations to it.
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The sound reception system in the inner ear is as follows:
Explanation:
- The sound waves enter the ear, the sound waves travel the outer ear, then to the auditory canal which causes the eardrum to vibrate.
- The central part of the eardrum is attach to the small bone called as malleus. The malleus vibrate and transmits the sound to the middle ear containing the incus and the stapes.
- The cochlea is the inner receptor organ that receives the electrical impulses that carries the information to the brain.
Learn more about inner ear:
Describe the structure of human ear external ear middle ear and inner ear: https://brainly.in/question/9325079
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