Get premium membership and access questions with answers, video lessons as well as revision papers.

How are the structures of the human ear suited to perform the function of hearing?

      

How are the structures of the human ear suited to perform the function of hearing?

  

Answers


Felix
-Pinna is funnel shaped allows collection of sound waves and channels them down the auditory canal/auditory mateus.
-Auditory canal is a tube that concentrates and directs sound waves to tympanic membrane/tympanum/eardrum.
-Eardrum is thin and tight. It sets into vibration/vibrates/converts sound waves into vibrations.
-The vibrations are transmitted to the ear ossicles/malleus, incus and stapes that amplify the sound vibrations.
-The vibrations are then transmitted to the fennestra ovalis/oval window.
-Oval window is a membrane which amplifies/transmits vibrations to the ?uids (perilymph and endolymph) then to cochlea.
-The cochlea is coiled to occupy a small space and accommodate a large number of sensory cells.
-The sensory cells/hairs (in the cochlea) are set into vibrations/stimulated producing nerve impulses in the auditory nerve.
-Impulses in the auditory nerve are transmitted to the brain for interpretation for hearing.
-Eustachian tube connects the inner ear to the throat. It equalizes air pressure in the middle ear with the atmospheric air pressure (in outer ear).
-Fennestra rotundus/round window dissipates/discharges/discards vibrations from inner ear to middle ear.
Anganifelix answered the question on April 18, 2018 at 11:50


Next: What is the functions of the human ear?
Previous: Explain how the structure of the human ear performs the function of balancing

View More Biology Questions and Answers | Return to Questions Index


Learn High School English on YouTube

Related Questions