1. The vibrating speakers transmit the vibrations to the neighbouring air molecules. These air
molecules further transmit this vibrations to their neighbouring particles. This is called a sound
2. Our ear is divided into
parts.
3. The outer ear has the
and the
4. The job of the pinna is to
5. The sound waves pass through the auditory canal and meet the
6. The eardrum is a
which is super sensitive to the vibrations in
1
the air.
7. The
separates the outer ear from the middle ar.
8. The middle ear consists of the three tiniest bones of the human body, which together are called
the
9. The three bones in the middle war are called the
and
the
They are also called the
and the
10. The main job of the three bones in the middle ear is to
11. The inner ear consists of a
, not air.
12. The coiled , bone structure inside our ear is called
13. The special cells in the cochlea , convert the vibrations into
14. The electrical signals are carried to the brain by the
15. Draw a labeled diagram of the ear. ( Sent on WhatsApp Group)
Answers
Answer:
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Answer:
sound waves enter the ear, they travel through the outer ear, the external auditory canal, and strike the eardrum causing it to vibrate.
The central part of the eardrum is connected to a small bone of the middle ear called the malleus (hammer). As the malleus vibrates, it transmits the sound vibrations to the other two small bones or ossicles of the middle ear, the incus and stapes.
As the stapes moves, it pushes a structure called the oval window in and out. This action is passed onto the cochlea, which is a fluid-filled snail-like structure that contains the receptor organ for hearing.
The cochlea contains the spiral organ of Corti, which is the receptor organ for hearing. It consists of tiny hair cells that translate the fluid vibration of sounds from its surrounding ducts into electrical impulses that are carried to the brain by sensory nerves.
As the stapes rocks back and forth against the oval window, it transmits pressure waves of sound through the fluid of the cochlea, sending the organ of Corti in the cochlear duct into motion. The fibers near the cochlear apex resonate to lower frequency sound while fibers near the oval window respond to higher frequency