Characteristics Of The Human Auditory System

When a person with normal hearing hears the sound travels along the ear then bounces against the ear drum. The eardrum, the bones inside, and the cochlea vibrate and move thousands of tiny hairs inside the ear. When these hairs move an electrical response occurs. This electrical response goes to the hearing nerve and then it is send to the brain.

The ear is made up of three areas: the outer, middle, and inner ear. The outer ear is very important for collecting sound waves. It is made up of the pinna and the ear canal. The pinna, the actual physical outward appearance of the ear, receives sound waves and begins to funnel them into the ear canal.

The physiology of hearing starts with a vibration that occurs in the air which sends an acoustic signal to the ear drum. The signal is transduced into a mechanical signal that transmits through the inner ear and the cochlear nerve. Finally, the signal is

interpreted by sound receptors on the skin. This is transmitted to the brain for integration before

The middle ear has three ossicles (tiny bones) the hammer, the anvil, and the stirrup that connect the middle ear to the inner ear. When sound enters your middle ear, it causes the ossicles to vibrate. These vibrations then move into the cochlea, which is filled with fluid. When the vibrations move the fluid that is in the cochlea, it stimulates tiny hair cells that respond to different frequencies of sound. After the tiny hair cells are stimulated, they direct the frequencies of sound into the auditory nerve, as nerve impulses. (ASHA 2013)

After watching Kelly and analyzing the actual surgery of the cochlea implant, the inner ear and how we receive signals makes more sense. To be honest I had to watch this video multiple times and look up ways they perform the surgery to get a better overall understanding. However thinking about how we pick up noise and hear sound differs between each individual, such as light. It all depends on our hair cells, which

The ear is made up of three parts: the outer ear, the middle ear and the inner ear. The outer ear is responsible for collecting the sound wave, the middle ear increases the sound energy and transmits the sound to the inner ear and finally the inner ear transforms the sound waves into nerve impulses and sends them to the brain. When the sound wave passes the ear canal there is a vibration in the eardrum which affects 3

In the article, " Hearing Sound Does not Require Ears," the author, Tabitha Callaway, states that, "Imagine meeting someone who speaks in a foreign language. You may be able to hear all of the sounds they are making, but unless you are familiar with the language they are speaking, you cannot understand what they are saying." This shows the final way how sound works, especially for humans. What the author is trying to explain is that, because the brain does not know this native language, the brain does not know what to do with the sounds. Our brains cannot translate these sound vocal cords if we do not know the language. Although the brain may be able to process the tone of the voice that is speaking ( the voice could be angry, sad, or full of fear,) we would not be able to process the words into our native language, because we do not know the language the other person is speaking. That was the final way sound

As the hearing is one of the most important ability a person can have it has a great deal of benefits. This allows an individual to hear sounds from a mechanical wave which is then transferred to stimulate the hearing organs inside the body. The mechanical wave is only able to transfer energy through a medium, the two types of waves that associate with the mechanical is both the longitudinal and the transverse wave.

Just like the eyes the ears also have a good amount of layers. The first layer is the outer ear that is made from skin and cartilage, and due to its curvy shape our ears are able to catch the sound. The sound then travels from the outer ear to the tympanic membrane, this membrane forms the eardrum and vibrates in order to respond to sound waves. From the membrane the sound moves to the inner ear, the inner ear has three very small bones. These small bones send the sound information to the brain through the auditory nerve.

Audition is the term used to define hearing, and involves sound waves, which are interpreted by our brains to help us distinguish individual sounds. The process of hearing starts in the outer ear, which sends sound waves to the ear drum. The ear drum vibrates and hits the tiny bones in the middle ears, followed by the stirrup, one of the tiny bones, to hit the oval window of the cochlea. Vibrations from the striking of the oval window cause waves in the fluid in the inner ear to deflect the basilar membrane. Hair cells are bent, then interact with the auditory nerve, followed by neural impulses being passed onto the brain which translate the impulse into information that tells us what sound was just heard.

If someone is talking to you in a foreign language, you probably wouldn't know what they were saying. You might understand what type of mood they are in or if they are panicking. The reason behind that is because sound is energy released in the form of vibrations. In the article " Sound is all around us " Jason Torres states " The vibrations emit from whatever has made the sound in what is known as a longitudinal wave." This is saying that sound is a vibration sent out from something in the form of longitudinal waves. Also in the article " Sound is all around us", Jason Torres States " high frequency sounds are not always detectable by the human ear and that people usually realize that sound waves are still there, even when they do not hear them." This is saying that just because sound waves are sent out dose not mean that it has to be heard.

The snail like shape of the cochlear effectively boosts the strength of the vibrations caused by sound, especially for low pitches. When sound waves hit the ear drum, tiny bones in the ear transmit the vibrations to the fluid of the cochlea, where they travel along a tube that winds into a spiral. The tube’s properties gradually change along its length, so the waves grow and then die away, much as an ocean wave travelling towards the shore gets taller and narrower before breaking at the beach.

Each subject participated in three test sessions conducted in a quiet room at the family home.

Sound is not only for people who can hear. You can experience sound in different ways. For example. in passage number one, "Sound is All around Us" the author states that, "the energy is released in the form of vibrations" meaning you don't have to hear a loud sound or a low sound. And in passage number two, " Hearing Sound does not Require Ears" in paragraph, "Ears are not Needed for Hearing" tells you that, "the ears are specifically designed to receive sound vibrations that are emitted" this means that you ears don't necessarily use all sorts of sound to hear.