What are the physiological functions of the human ear? What is the function of the ear?

The outer ear is divided into the pinna and the external auditory canal. The pinna has the function of determining the orientation of the sound source and the collection and amplification of sound waves. The sound coming from the front directly enters the ear, and the sound coming from the back is blocked by the pinna, so it has a certain effect on the sound localization.

Collecting and amplifying sound waves is associated with funnel-shaped pinna. For example, in order to hear more clearly, the elderly with poor hearing often curl up their palms and place them above the pinna to increase the length of the pinna and enhance the sound-gathering effect of the pinna. Experiments have proved that for the sound in the frequency band of 4000-5000Hz, the pinna can obtain an additional enhancement of about 10db (decibels), and the enhancement is related to the depth and cross-sectional area of the ear. The edge of the pinna also has a decibel gain to the sound pressure.

The external auditory canal is a channel for conducting sound waves. According to the principle of physics, a pipe closed at one end has a resonant amplification effect on the sound waves that are four times the length of the tube. Since the end of the external auditory canal is an elastic eardrum, the external auditory canal is an S-shaped curved tube, coupled with the resonance amplification effect of the ear nail, the middle and high frequency parts of the external auditory canal are more significantly improved, which will help the human ear to distinguish and understand the sound and speech information.

The normal human ear can distinguish about 400,000 different sounds, and the sound passes through three parts of the auditory system before reaching the brain: the outer ear, the middle ear, and the inner ear. Hearing is a necessary conduit for human knowledge exchange.

Hearing allows us to perceive our environment and create a sense of security and participation. Another physiological function of the ear is the balance function, which is related to the vestibular system. The balance of the human body is mainly done by the visual, proprioceptive, and vestibular systems.

1. The ears of bats, which are used to receive sonar echoes.

2. The dog's ears are pricked up, as long as there is a sound, it can hear it, and it can also turn around and hear sounds in all directions.

3. Pigs have big, droopy ears, so their hearing is dull, and they like to sleep.

4. The mole's ears do not have pinna, so it is easy for it to burrow in the ground.

5. Birds' ears also have no pinna. If they have ears, they increase their drag when flying.

6. A cat's ears can clearly identify sounds in the range of 3 inches to 3 feet**, determine the exact sound made by objects moving back and forth, and direct their eyes in the same direction.

The function of the ear is to collect sound and conduct sound, the outer ear is responsible for collecting sound, the outer auditory canal and the middle ear are responsible for conducting sound, and it is our brain that really processes and analyzes sound.

The function of the human ear is, of course, to collect sounds, to hear sounds, and to process sounds.

The inner ear is located in the temporal bone and is also known as labyrinthine due to its complex structure. The inner ear is divided into three parts: vestibular, semicircular canal, and cochlea, with the vestibular canal and semicircular canal responsible for bodily balance, and the cochlea responsible for hearing. The inner ear is divided into bony labyrinth and membranous labyrinth, and the bony labyrinth is the "tunnel" of the petrous bones of the temporal bone. Within this tunnel, a membranous tube with both ends closed is encased, called a membranous labyrinth.

The fluid filled in the labyrinth is called perilymph, which communicates with the cerebrospinal fluid in the subarachnoid space, so the composition of the perilymph fluid is the same as the cerebrospinal fluid. The fluid filled in the membranous labyrinth, called endolymphatic fluid, is produced by the striae vascularis of the cochlear cochlea. Internal and external lymph are not connected.

Cortiscus is an auditory sensory device, which is a key part of the inner ear, which is located on the basement membrane and is composed of inner and outer hair cells (auditory receptor cells), Sertoli cells, reticular membrane and operculum. Most of the hair cells, the reticular membrane and operculum membrane, are immersed in the endolymphatic fluid that surrounds them.

The auditory functions of the cochlea are: Sound transmission, that is, the transmission of sound waves felt by the vestibular window to the hair cells. Sensory, that is, the conversion of the sound energy received by the Cole's apparatus into cochlear nerve potentials.

It is transmitted to the cochlear nerve, and then through the cochlear nerve to the auditory center of the brain, producing hearing. This is the mechanism of sound transmission and sound sensing in the cochlea. At present, most scholars believe that the cochlea can provide a preliminary analysis of sound frequency.

Each frequency of sound waves corresponds to a resonance site in the basement membrane: low-frequency sounds at the top of the cochlea, mid-frequency sounds in the middle of the cochlea, and high-frequency sounds at the basement membrane at the bottom of the cochlea, so the cochlea itself is a resonator.

The structure of the middle ear consists of four parts: the tympanic chamber, the eustachian tube, the tympanic sinus, and the mastoid cavity. Inside the tympanic there are ossicles, muscles, ligaments, and nerves. The middle ear is a transducer, which converts one form of energy into another, the middle ear converts sound energy into mechanical energy through the tympanic membrane and ossicular chain, and then the stapes plate replaces the mechanical energy with the liquid energy of the inner ear.

Every organ of the human body is important to everyone, and the ear is also a part of the human organ. It also plays a very big role for everyone, it can make everyone hear, and at the same time, it can also maintain the beauty and make everyone look more even. <>

The ear is an important organ in everyone's body, and it is indispensable for everyone. It allows everyone to hear some outside voices and is a more sensitive organ. Its main function is to enable everyone to have a sense of hearing, and after collecting sound waves, these sounds are transmitted to their own brains, that is, their own nerves, so this is why people can hear other people's speech.

If you don't have ears, you won't be able to hear sounds, which will bring great inconvenience to everyone's life, and some people who don't hear are very painful. <>

The ears are one of the five senses, which are distributed on both sides of the skull, and are very important for everyone's face. The presence of ears can keep everyone in a normal appearance, and in life, if you see some deformities in your ears, it will make people feel that his appearance is very strange. So ears are a very important part of the human body, and if you don't have ears, people will look very weird, and generally everyone has ears.

3. Summary. In life, everyone should also pay attention to protect their ears, because ears are very important for everyone. In life, you should try to avoid going to some noisy places. Severe high-decibel sounds may cause tinnitus in everyone.

This disease is very bad, so in life, we must try to avoid going to these places where the cup is relatively high. When looking at their phones, everyone also tries to avoid using headphones, especially many people like to wear headphones when they sleep. This is a very bad habit, which will cause some ear diseases, and at the same time, in life, we should also pay attention to the cleanliness and hygiene of the ear canal, so as to prevent the occurrence of inflammation of the ear canal.

The main function is to be in charge of hearing and human balance, the function of listening to sound, is the most important balance organ, the inner ear not only has the function of hearing, but also has the function of balance, if there is a problem with the ear, then our balance function will have problems, will lead to dizziness, walking unsteady.

The main function of the ear is to listen to sound, the pinna has the function of collecting sound waves, after collecting sound waves, the sound is transmitted to the inner ear through the middle ear, and nerve impulses are generated to produce hearing; Secondly, there is the role of maintaining balance and aesthetics.

Keep balance, hear the sound, you can communicate better, you can observe the surrounding environment in time, and you can find the occurrence of things and the sound through the sound.

The basic function of the ear is hearing.

The ear is located behind the eye and has the function of receiving mechanical waves, which can be converted into nerve signals that are then transmitted to the brain. In the brain, these signals are translated into words, ** and other sounds that we can understand.

The ear is located behind the eye and has the function of distinguishing sounds, which can convert the sound emitted by vibrations into nerve signals, which are then transmitted to the brain, where the signals are translated into understandable words, ** and other sounds. Therefore, the role of the ear is mainly to collect sounds, so that the human body can hear the sound of the outside world, and can feel the role of language and external sounds. In addition, the ear also has the function of maintaining balance, which can maintain the balance of the human body, and if there is a balance disorder, vertigo can occur, including positional vertigo.

The ear is an important organ of the human body, including several important components such as the auricle, the external auditory canal, the middle ear, the inner ear, etc., and its functions include collecting and perceiving sound, and balancing functions, as follows: 1. Collecting and perceiving sound: The important function of the human ear is to collect and perceive external sounds, and the auricle collects the sound of the surrounding environment, and transmits it to the tympanic membrane through the external auditory canal, as well as the ossicular chain of the middle ear cavity, which is further transmitted to the inner ear, converted into electrical signals, and perceived by the brain.

2. Balance function: The important function of the ear is the balance function.

The basic function of the ear is, of course, to hear, to hear outside sounds.

The ear is divided into extraordinary, middle and inner ears, and their functions are different. The main thing is to collect sound, listen and balance, and then go deeper to be professional.

Ear hearing? The function of my ears has not been very good, and I have recently found that I can't distinguish stiffness at close distances, and there is no discomfort in my ears. Now there is no pain, itching, etc., I don't know what caused it.

Is it easy to have this kind of ear condition?

The basic structure of the ear includes the outer ear, the middle ear and the inner ear, the outer ear includes the auricle, the external auditory canal, the middle ear includes the tympanic chamber, eustachian tube, tympanic sinus and mastoid process, and the inner ear includes the vestibule, semicircular canal and cochlea, and the specific functions are as follows:

1. Auricle: The main functions of the ear are hearing and balance, and the auricle is responsible for collecting and transmitting sound waves to the external auditory canal, which can play a role in transmitting sound and resonating with sound.

2. Middle ear: The middle ear is mainly the lymphatic fluid that transmits sound waves from the air in the external auditory canal to the cochlea of the inner ear.

3. Inner ear: The inner cochlea generates nerve impulses, and conducts the auditory cortex through the central conduction pathway to produce hearing.

The ear also has a balancing role, and the human body mainly relies on the vestibular, visual and proprioceptive three systems to maintain balance, and the vestibular system is the most important.