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प्रश्न
Given below is the diagram of the human ear. Study the same and answer the questions that follow:
(i) Give the biological term for the part labeled ‘A’ and state its function.
(ii) Name the part labeled ‘B’ and state its function.
(iii) Name the part labeled ‘C’ and state its function.
(iv) Give the function of ear wax.
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उत्तर
(i) Ear Ossicles (Malleus, incus, and stapes)—To receive, magnify and transmit the sound vibrations to the membrane of the oval window.
(ii) Eustachian tube—It equalizes the air pressure on either side of the eardrum allowing it to vibrate freely.
(iii) Auditory Nerve—It transmits the impulses from cochlea to the brain.
(iv) Ear wax-has insect repellent properties hence prevent the entry of insects in the auditory canal. It also checks to die entry of dust particles in the ear. Thus, it lubricates and protects the eardrum.
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संबंधित प्रश्न
(i) Draw a well labelled diagram of the membranous labyrinth found in the inner ear.
(ii) Based on the diagram drawn above in (i) give a suitable term for each of the following descriptions :
1. The sensory cells that helps in hearing.
2. The part that is responsible for static balance of the body.
3. The membrane covered opening that connects the middle ear to the inner ear.
4. The fluid present in the middle chamber of cochlea.
5. The structure that maintains dynamic equilibrium of the body.
the biological/technical terms for a thin membrane covering the entire front part of the eye.
Draw a labelled diagram of the inner ear.
Name that part of ear which vibrates when outside sound falls on it.
What is the function of three tiny bones in the ear ?
What is the name of passage in outer ear which carries sound waves to the ear-drum ?
Complete the following sentence with appropriate Word
The parts of the human ear concerned with hearing are :
The eardrum is known as ______.
Select the option with incorrect identification:
Given below is the diagram of a part of the human ear. Study the same and answer the questions that follow:
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- Give the collective biological term for Malleus, locus and Stapes.
- Name the parts labelled A, B and C in the diagram.
- State the functions of the parts labelled 'A' and 'B'.
- Name the audio receptor region present in the part labelled 'A'.
