Animal Physiology: Locomotion, Senses, Nervous and Chemical Coordination
Write short note on cochlea.
Arrangement of ear ossicles, starting from ear drum is
The ear ossicles are three bones present in middle ear, they are among the smallest bones in the human body. They serve to transmit sounds from the air to the fluid-filled labyrinth (cochlea).
Arrangement of ear ossicles, starting from ear drum is the malleus, incus, and stapes, shapes resembles of the hammer, anvil, and stirrup respectively.
As sound waves vibrate the tympanic membrane (eardrum), it in turn moves the nearest ossicle, the malleus, to which it is attached. The malleus then transmits the vibrations, via the incus, to the stapes, and so ultimately to the membrane of the fenestra ovalis, the opening to the vestibule of the inner ear. Hence option B is correct.
Write short note on cochlea.
Explain the mechanism through which a sound produces a nerve impulse in the inner ear.
Answer the following: (a) Which part of the ear determines the pitch of a sound? (b) Which part of the human brain is the most developed? (c) Which part of our central neural system acts as a master clock?
Select the option that correctly matches the structures with its location and function.
The part of the ear where sound is transduced is ____________.
Bony labyrinth is filled with a fluid called
A small passage that permits continuity between scala vestibuli and scala tympani is ______________.
The thin elastic membrane covering the sensory hair cells of the ear is known as ______________.
Which of the following is a correct match of ear part and its function?
In which part of the ear are sound waves amplified?