science

WHY DO WE NEED THREE SEMICIRCULAR CANALS IN EACH EAR,RATHER THA ONLY ONE?

asked by astha
  1. This is a very interesting question; I had no idea what the answer is until I looked it up. See http://en.wikipedia.org/wiki/Semicircular_canal

    Apparently the three fluid-filled canals have nothing to do with hearing. They function as an accelerometer to detect small motion and help maintain balance. You need three of them because there are three dimensions: up-down, left-right and forward-back. The mechanism by which acceleration is sensed (uneven pressure against hair-like cilia connected by nerves to the brain)is similar to the way sound is detected. It is logical that organs that work similarly, but with different functions, would be located in the ear.

    posted by drwls

Respond to this Question

First Name

Your Response

Similar Questions

  1. psych

    habitually listening to loud music through headphones can result in loss of hearing in the: A)Organ of corti B) middle ear C) auditory nerve D) semicircular canals
  2. Senses- Science Grade 7

    The semicircular canals sends impulses to the cerebellum? If false what is the correct answer? I do not know.
  3. Biology

    When we spin around in one place and stop, we feel as though we are still moving. This feeling is caused by continued Select one: A. transmission of nerve impulses from cochlea to auditory nerve B. movement of fluid against
  4. Biology (Please Help!)

    When we spin around in one place and stop, we feel as though we are still moving. This feeling is caused by continued Select one: A. transmission of nerve impulses from cochlea to auditory nerve B. movement of fluid against
  5. science

    18. Which of the following best describes the overall function of hormones? A. To control physiological processes in the body B. To provide a pathway for nerve messages C. To stimulate the growth and maturation of body organs D.
  6. math

    tha breath of rectangle plot is 0.6 times its lenth.if twice tha perimeter of tha plot is 320 meters.what is tha lenth of tha plot in meters.
  7. Hearing Loss/Causes

    I need websites on these Questions: How does a buildup of earwax cause someone to have a hearing loss? What happens when there is hearing loss in the inner ear? What are some reasons that a person may have a hearing loss in the
  8. Science

    hi could you please help with the following question: In humans, free ear lobes is dominant to attached ear lobes. A male who is pure breeding for free ear lobes marries a woman who is pure breeding for attached ear lobes. What
  9. geography

    how are inundation canals different from perennial canals
  10. AP Biology

    The ear tuft allele in chicken is autosomal and produces feathered skin projections near the ear on each side of the head. This gene is dominant embryos do not hatch from the egg. Assume that in a population of 6000 chickens, 2000

More Similar Questions