.

Tuesday 25 November 2014

HUMAN EAR: OUTER EAR, MIDDLE EAR, INNER EAR, HEARING

12:53 - 18 comments




The ear is the organ of hearing and balance in mammals.


Human Ear has receptors that are sensitive to the audible frequency range. The audible frequency range for a human ear is 20Hz – 20,000Hz. Human ear is deaf to vibrations which are below 20Hz or above 20,000Hz. This is the ideal range, but exact audible frequency range differs for each person. A young person may listen as low as 20Hz, but an old man may not. Age factor has lots of importance in the audible frequency range for a person. 

Structure of Human Ear:

Human ear consists of three parts.


  • Outer Ear
  • Middle Ear
  • Inner Ear



Outer Ear:

Outer ear is the outer part of the ear which is visible to us. This visible part is made up of cartilage confined by the skin known as the Ear pinna. Many vertebrates, like eyes, can move their pinna in order to focus on vibrations. Opening of the ear is a tube that leads inwards called the external auditory meatus. It has sebaceous organs that produce secretions. Ear tube collects sound energy and focuses it on the tympanic membrane (eardrum). The chief function of the outer ear is to direct sound waves toward the tympanic membrane. Outer ear also contains muscles which have little activity in humans as many mammals can move their ear to focus sound waves.

Middle Ear:

Middle ear is the part of the ear next to eardrum. Middle ear is an air filled pit which communicates with the nasal cavity (pit of nose) by a thin tube called Eustachian tube which allows the pressure to level between middle ear and throat. There are three bones in the middle ear known as incus, malleus and stapes that fits into the window-like opening in the bone of the brain that differentiates the middle ear from the internal ear. These three bones transmit the sound vibrations from the tympanic membrane (eardrum) into the inner ear. The chief function of the middle ear is to transmit sound waves from the tympanic membrane to the inner ear. Like outer ear, inner ear also has muscles and nerves.


Inner Ear:

Inner ear is the inner most part of ear. It is primarily concerned with detection of sound and balancing. The internal ear comprises the following parts. There are 3 semicircular channels having inflammation at one of their closures called the ampullae. These semicircular channels open into utricles, sacculus and a twisted cochlea.  

The auditory nerve which is originating from brain supplies many branches to the cochlea making its inward cells delicate to sound vibrations.  The three semicircular channel, utricles, sacculus and cochlea are jointly referred to as membranous labyrinth. The membranous labyrinth runs within the bony labyrinth. A fluid called perilymph is present between them and inside it, is an alternate liquid the endolymph containing certain calcareous particles.



Hearing:

The sound vibrations circulating in the atmosphere are directed into the external auditory meatus. These vibrations strike the tympanic membrane (eardrum) and make it to vibrate. The tympanic membrane transmits the vibrations to the three ossicles and then to the perilymph and the endolymph. The calcareous particles in the endolymph hit the responsive cells of the cochlea which is stimulated and sends impulses that go through the auditory nerve to mind and are deciphered as sound.

Balancing:

The membranous labyrinth (3 semicircular channels, utricles, sacculus and coiled cochlea) excluding cochlea have to do with balancing and posture. Any flaw in these causes wooziness. It is a basic experience that if an individual goes all around on a swing, he loses his balance and is not able to stand upright for quite a while until the balance is reinstated.

  • Share this post:

Author of This Article,

Muhammad Tayyab.


He is a 18 year old entreprenuer who writes on various topics like SEO, Blogging, Biology and a lot more. Apart from blogging he is also pursuing his career in Medical and Engineering Field. Do Follow him to get in touch.

Follow Him on ↓


Twitter | |

Related Posts

18 comments:

  1. Do you still Struggle with Cold Sores, unexpected Outbreak and Herpes Virus? then you don't have to keep waiting for treatment when the is a herbal medicine that cure this virus. I was searching online for Herbal Cure for Herpes Virus when I saw a testimony online about Dr. Akintunde and how he cured a lady of HSV1 with his.
    natural herbal medicine and tested Negative and in less than a month she was cured of this virus. So it took me time to believe that this was true, because my family Doctor tried all his best to get rid of this virus in my body system but yet no cure and I suffered from outbreak and Cold Sores always. I had to contact Dr. Akintunde after I have access his website and i had faith in God that I was going to be fine and free of this virus one day. Finally I contacted Dr. Akintunde on his WhatsApp number that I saw on the testimony post online, and after our conversation the Doctor only promise me that I was going to be cured and free of this virus after taking his natural herbal medicine because I was tired of my situation with this virus it was so distracting to my life and whole family. Later Dr. Akintunde send some Herbal medicine to me through UPS courier service, with instructions on how to used this medicine, to my biggest surprise first week of taking my herbal medication I saw great improvement and I still think that it's a dream but this is real, I now test Negative of this virus today and my blood pressure well regulated now, my family doctor after my test was extremely surprise to see my test result change to HSV1 Negative and no more symptoms, cold sores, sores throat and outbreak again. I wish to tell everyone about this, mostly if you have this virus then do yourself good to contact Dr. Akintunde and see what the Lord can do through this Herbal Doctor's medicine in less than a month. 100% free from herpes Virus. I and my family say "thank you" Sir, for helping my life. You are a blessing to this generation and God will reward you richly

    Email: drakintundehomecare@gmail.com

    WhatsApp number: +234 703 524 5593

    ReplyDelete
    Replies
    1. I'm so exited to share my testimonies about the Good Work of Dr. Udebhu who get me cured from herpes simplex virus (HSV1&2) with his herbs, I never thought that I will live on earth before the year runs out. I have been suffering from herpes, I had spent a lot of money going from one Hospital to another looking for way to get rid of this disease, the hospital have been my home everyday residence. Constant checks up have been my hobby not until this faithful day, I was searching
       through the internet, I saw a testimony on how Dr.Udebhu helped someone in curing his herpes disease using his healing
       Herbs, quickly I copied his email just to give him a test I spoke to him, he told me that he is going to provide the herbal cure to me, which he
      did, after i receive his herbs and i take it as instructed i was cure permanently from herpes my herpes disease was gone. so I decided to share my testimony, that nothing is impossible with God, God use a man to healed me. No matter what you are passing through, no matter how deadly the sickness is and no matter what the situation is God that did mine is still going to do yours, people suffering from herpes, brain tumor, kidney disease, pcos, AIDS, ALS,copd, asthma, athritis,herpes, Cancer,Hpv, any kind of disease, you can rich him now via ? Gmail address: drudebhuherbalhome@gmail.com or whatsapp +2349051254152  

      Delete
    2. Finally a Natural Product to cure Herpes and Cold Sores is Available at HealthyLife Herbal Centre. earning that you have HERPES  can be one of the most difficult experiences you go through in life. You may feel scared, sad or even angry – this is OK, and a completely natural part of coping with something that can be life changing.
      It will probably take a while for the news to sink in.

      My name is Bella faith gilmore and i am from the United States.

      I remember spending so much money buying drugs from hospitals hoping that i will be cured from HERPES INFECTION, but all to no avail. I contacted so many  doctors and they prescribe medicine for me which they indeed tried their best but was unable to provide for me a possible cure, luckily i saw a comment about a great work of (Healthylife herbal centre) online.

      I then contacted him (herbalist roman) through email healthylifeherbalcentre@gmail.com After much chat and enquiry with the doctor, i decide to take a leap of faith because i have nothing to loose.
      To my greatest surprise, healthylife herbal centre prepare a medicine and  send me a Herbal Medicine through FEDEX courier Service, and he gave me guidelines on how am to take it. I followed all procedures as instructed, and after 2 weeks of taking it i was cure from HERPES  his medicine is legit and it is real.

      I just want to encourage all individuals out there living with HERPES ,  ITCHY SHINGLES , Genital Herpes, HSV1&2, HIV/AIDS/ HPV, COPD, CANCER, Hepatitis b, Lupus, PCOS, Kindney failure, Lung cancer and alot more. That there is still a huge chance that you can get cure only with the help of  healthylife herbal centre. kindly contact him via email: healthylifeherbalcentre@gmail.com or whatsapp +2348074216045

      Delete
    3. MY DAUGHTER CANCER HEALING TESTIMONEY

      Hi everyone, this is good news, a perfect and greats one. My daughter of
      17years who has suffered of Ovarian Cancer for 2 and half years has been
      cure by a Herbal doctor called Dr voodoo, who uses herbal and traditional
      medicine to cure people. I have spent so much on my daughter's health for
      years but no improvement. A friend told me about this herbal man who cure
      people with herbal medicine. he cures all sickness, diseases, viruses, and
      infections with his different herbal curing medicine.The result that
      declares my daughter janet healed was from a hospital here in USA, And the
      results of the test says my daughter was okay. Dr voodoo directed that
      janet would be heal in 7days if she uses the medicine as directed. And
      7days later, we went to confirm from the central hospital and several test
      that was done says my daughter is not sick or anything. So she was cured by
      this herbal doctor in 7days. This amaze me though. I would advice everyone
      to meet this Dr voodoo his email is voodoospelltemple66@gmail.com
      for his herbal medicine to cure your illness because am happy to see my
      daughter healthy again.Meet Dr voodoo and set yourself and your love ones
      will free you can also add Dr voodoo on whatsApp +2348140120719

      Delete
    4. I was able to get rid of my herpes with herbal medicine which was prepared and shipped to me by Dr AKHIGBE. He's a great herbalist and medicine man everyone should know about, he has cures for all types of diseases and viruses in the body. You may need Dr AKHIGBE assistance. His email drakhigbeherbalhome5@gmail.com or WhatsApp him +2349021374574.

      Delete








  2. i couldn't believe that i would ever be re-unite with my ex-lover, i was so traumatize staying all alone with no body to stay by me and to be with me, but i was so lucky one certain day to meet this powerful spell caster Dr Akhere,after telling him about my situation he did everything humanly possible to see that my lover come back to me,indeed after casting the spell my ex-lover came back to me less than 48 hours,my ex-lover came back begging me that he will never leave me again,3 months later we got engaged and married,if you are having this same situation just contact Dr Akhere on his email: AKHERETEMPLE@gmail.com thanks very much sir for restoring my ex-lover back to me,his emai: AKHERETEMPLE@gmail.com or call/whatsapp:+2349057261346
















    i couldn't believe that i would ever be re-unite with my ex-lover, i was so traumatize staying all alone with no body to stay by me and to be with me, but i was so lucky one certain day to meet this powerful spell caster Dr Akhere,after telling him about my situation he did everything humanly possible to see that my lover come back to me,indeed after casting the spell my ex-lover came back to me less than 48 hours,my ex-lover came back begging me that he will never leave me again,3 months later we got engaged and married,if you are having this same situation just contact Dr Akhere on his email: AKHERETEMPLE@gmail.com thanks very much sir for restoring my ex-lover back to me,his emai: AKHERETEMPLE@gmail.com or call/whatsapp:+2349057261346

    ReplyDelete
  3. I have been suffering from (HERPES) disease for the last four years and had constant pain, especially in my knees. During the first year, I had faith in God that I would be healed someday.This disease started to circulate all over my body and I have been taking treatment from my doctor, a few weeks ago I came on search on the internet if I could get any information concerning the prevention of this disease, on my search I saw a testimony of someone who has been healed from (Hepatitis B and Cancer) by this Man Dr. Silver and she also gave the email address of this man and advise we should contact him for any sickness that he would be of help, so I wrote to Dr. Silver telling him about my (HERPES Virus) he told me not to worry that I was going to be cured!! hmm i never believed it,, well after all the procedures and remedy given to me by this man few weeks later I started experiencing changes all over me as the Dr. assured me that I have cured, after some time i went to my doctor to confirmed if I have been finally healed behold it was TRUE, So friends my advice is if you have such sickness or any other at all you can email Dr. Silver (drsilverhealingtemple@gmail.com) sir I am indeed grateful for the help I will forever recommend you to my friends!!! with your lovely Email Address ( drsilverhealingtemple@gmail.com or whatsapp him on +2347032474849

    ReplyDelete
  4. There is a permanent cure to all kinds of human illness through natural herbs 🥑 and Roots ... BY DR OGBEIFUN THE GREAT TRADITIONAL HERBALIST HEALER...            BRING ALL YOUR PROBLEMS TO HIM 
                                                   AND SUFFER NO MORE..


    WHATSAPP: +2348050680253
    Email 📧: DROGBEIFUNHERBALHOME1@GMAIL.COM


    WEBSITE: VIEW THE LINK ON HIS BIOGRAPHY TO SEE HIS HERBAL MEDICINE.
    https://m.facebook.com/Natural-herbs-and-roots-that-cures-HIV-herpes-virus-diabetes-Etc-103895701350991/?ref=opera_speed_dial

    Website:

    https://drogbeifunherbalho1.wixsite.com/drogbeifunherbalhome

    ReplyDelete
  5. Happiness is all i see now I never thought that I will be cured from HERPES virus again. I have been suffering from a deadly disease (HERPES) for the past 3 years now, I had spent a lot of money going from one places to another, from churches to churches, hospitals have been my home every day residence. Constant checks up have been my hobby not until this faithful day, I was searching through the internet, I saw a testimony on how DR agaba helped someone in curing his HERPES disease, quickly I copied his email which is Dragabasolutionhome@gmail.com just to give him a test I spoke to him, he asked me to do some certain things which I did, he told me that he is going to provide the herbal cure to me, which he did, then he asked me to go for medical checkup after some days after using the herbal cure, behold I was free from the deadly disease, he only asked me to post the testimony through the whole world, faithfully am doing it now, please brothers and sisters, he is great, I owe him in return. if you are having a similar problem just email him on : Dragabasolutionhome@gmail.com or WhatApp: +2349074536486  

    ReplyDelete
  6. I want to give a testimony on how I was cured from herpes ii virus after using Doctor Patrick liquid herbal medicines for one month only, i found about Doctor Patrick on newspaper, I had to take his email and phone number and then contacted him, I explained everything to him and he assured me that he can help me and I will be free from this infection forever. He sent me the medicines and I started using according to his instructions, after two weeks of using the medicines, I saw great changes, I continued using the medicine until I used it all for one month, I was cured totally, no more symptoms and I went for another diagnosis, the Doctor gave me my test result and it came out negative, I want to thank God for making this come true and I want to thank Doctor Patrick for what he has done for me, contact this herbal doctor on herbalmedicalhome@gmail.com and whatsApp number is +2348021312463.

    ReplyDelete
  7. Hello viewers I am glad to have met with the powerful herbal healer called
    Dr voodoo who use his herbs to cure my HIV disease I suffered from 15years,
    but now I am a happy woman and i am free from this sickness that has been
    problem to my living, after using Dr voodoo herbal medicine within 1week i
    was diagnose negative, I will recommend Dr voodoo to everyone reading this
    article because this herbal healer is capable to heal anything, the
    scientist said has no cure, Email him : voodoospelltemple66@gmail.com or
    add Dr voodoo on whatsApp: +2348140120719

    ReplyDelete
  8. Good day everyone. Am testifying of the miraculous work of a great traditional doctor called Dr Kpudu. I have been suffering from HPV since last 2 years but today I am happy that am cured from it with the herbal medicine made by Dr kpudu the great herbal doctor, I was browsing the Internet searching for help when I came across a testimony shared by someone on how Dr kpudu cured her from HPV Disease. I quickly contacted him to get the cure and today I am now free from the Virus, you can contact him too and he's going to help you as well Email: drkpudu.herbalhome@gmail.com or What's app: +2348050406865. Dr kpudu also has remedies for other illnesses such as COLD ARRIVALS, PEMPHIGUS, HIV / AIDS, DIABETES, CANCER, HIGH BLOOD PRESSURE AND MANY MORE.

    ReplyDelete
  9. I want to share my testimony about Doctor babaiba who helped me.. i want to inform the public how i was cured from (HERPES SIMPLEX VIRUS 1/2 ) by Dr babaiba , i visited different hospital but they gave me list of drugs like Famvir, Zovirax, and Valtrex which is very expensive to treat the symptoms and never cured me. I was browsing through the Internet searching for remedy on HERPES and i saw comment of people talking about how Doctor babaiba cured them. when i contacted him he gave me hope and send a Herbal medicine to me that i took for just 2 weeks and it seriously worked for me, my HERPES result came out negative. I am so happy as i am sharing this testimony. My advice to you all who thinks that there is no cure for herpes that is Not true just contact him and get your Dr babaiba healing herbal cure of all kinds of sickness you may have like
    #CANCER,
    #DIABETES,
    #HIV
    #AIDS,
    #Herpes
    #Std
    #URINARYTRACT #INFECTION,
    #CANCER,
    #IMPOTENCE,
    #BARENESS
    #INFERTILITY
    #DIARRHEA
    #ASTHMA
    #SIMPLEXHERPES #GENITAL
    #COLDSORE
    . he also cure my friend from cervical #cancer Email: drbabaibaherbalsolutiontemple@gmail.com OR
    call or WHATAPP +2348140046509 I am forever greaful ...

    ReplyDelete
  10. I have been suffering from (HERPES) disease for the last four years and had constant pain, especially in my mouth. During the first year, I had faith in God that I would be healed someday. This disease started circulate all over my body and i have been taking treatment from my doctor, few weeks ago i came on search on the internet if i could get any information concerning the prevention of this disease, on my search i saw a testimony of someone who has been healed from (HIV and Cancer) by this Man Dr OSO and she also gave the email address of this man and advise we should contact him for any sickness that he would be of help, so i wrote to Dr OSO telling him about my (HERPES Virus) he told me not to worry that i was going to be cured!! hmm i never believed it,, well after all the procedures and remedy given to me by this man few weeks later i started experiencing changes all over me as Dr OSO assured me that i have cured, after some time i went to my doctor to confirmed if i have be finally healed behold it was TRUE, So friends my advice is if you have such sickness or any other at all you can email Dr OSO on drosohaberhome@gmail.com or call him WhatsApp +2348162084839

    https://sites.google.com/view/drosohaberhome/

    sir i am indeed grateful for the help. I will forever be grateful and of course
    recommend you to the world and all my friends!!!

    ReplyDelete
  11. An amazing testimony on on how i conceive, also cure from fibroid, i wonder why people still don't believe that roots and herbs are very essential and fruitful in different aspect, especially when you can't conceive and bear children. I am a living witness because I tried all I could to be pregnant but all to no avail, on this faithful day, i decided to check the net for updates on healthy living and i came across testimonies of lot of women who Priest Babaka has helped with his native herbs to conceive. i decided to put a try because this has been my greatest problem in life so I emailed Priest Babaka, and he told me what to do which i did, after which he sent me some roots and herbs syrup and gave me step by step guild lines on how and when to have sex with my man. I missed my menstrual flow within a short period of taking it, and the doctor confirmed that I am pregnant. I am very glad to tell the world that I just put to bed a bouncing baby boy last week. Contact Priest Babaka for your own testimony via Email: babaka.wolf@gmail.com Or Facebook at priest.babaka

    ReplyDelete
  12. Herbs are very good in eliminating viruses / diseases which I think have no cure, I was able to get rid of HSV1 & 2 and HIGH BLOOD PRESSURE after using the herbal medicine I ordered from dr kokobi. y'all shouldn't be carried away by what the medical doctor told you. Herbal remedies have the best solution. contact him via his Email kokobiherbalremedycentre@gmail.com or whatsapp +2349055346858 below he has the cure to any illness/diseases

    ReplyDelete
  13. I was able to get rid of my herpes with herbal medicine which was prepared and shipped to me by Dr AKHIGBE. He's a great herbalist and medicine man everyone should know about, he has cures for all types of diseases and viruses in the body. You may need Dr AKHIGBE assistance. His email drakhigbeherbalhome5@gmail.com or WhatsApp him +2349021374574.

    ReplyDelete
  14. Healing successor Dr Akhigbe !!! I am posting this Really hoping I give some hope to those families that deal with chronic pain such as herpes, diabetes, cancer etc I saw a huge improvement in just a few days and feel like its actually going, So happy to report that I have seen an unbelievable huge improvement on my Herpes after being cured with the use of Natural medication...In just less than two weeks!! More energy, no pain actually and not being on flares. I feel great and amazing, smiling and laughing so much now, less anxiety and less repetitive questions, aches and fatigue complaints which have pretty much been issues in the struggle etc. These Dr Akhigbe Herbal medication are also known by many to work for arthritis, Diabetes, insomnia, anxiety, depression, crohn's, PTSD, COPD, HPV, ALS,  IBS and lots of conditions They ship worldwide . kindly contact his email: drakhigbeherbalhome5@gmail.com or Whatsapp +2349021374574 thank you  

    ReplyDelete

back to top
Real Time Analytics