Given below are some of the process which takes place in our ear when we are exposed to any sound. Arrange these in the correct order of sequence.
(a)The eardrum vibrates the transmits the sound wave to the ear ossicles.
(b) Vibration travel from oval window to the fluid of cochlea.
(c) Ripples in the basilar membrane band the hair cell against the tectorial membrane
(d) Generation of waves in the lymphs.
(e ) sound waves are collected
by the pinna.
(f) generation of nerve impulse and transmission through auditory nerves to the brain

Options

A. e,b,a,f,c,d
B. e,a,b,d,c,f
C. e,a,b,d,c,f
D. e,b,d,c,f,a

Answer

To arrange the processes that take place in our ear when we are exposed to sound in the correct order, we can follow the sequence of events that occur during sound transmission. Here is the step-by-step solution:

1. **Sound waves are collected by the pinna (e)**: The process begins when sound waves enter the ear through the outer ear, which is shaped like a funnel (the pinna). This is the first step in the auditory process.

2. **The eardrum vibrates and transmits the sound wave to the ear ossicles (a)**: Once the sound waves reach the eardrum, it vibrates in response to these waves. These vibrations are then transmitted to the three tiny bones in the middle ear known as the ossicles (malleus, incus, and stapes).

3. **Vibration travels from the oval window to the fluid of the cochlea (b)**: The stapes, the last of the ossicles, connects to the oval window, a membrane-covered opening to the cochlea. The vibrations from the stapes create waves in the fluid inside the cochlea.

4. **Generation of waves in the lymph (d)**: The movement of the stapes at the oval window causes waves to form in the cochlear fluid (lymph), which is crucial for the next step in the auditory process.

5. **Ripples in the basilar membrane bend the hair cells against the tectorial membrane (c)**: The waves in the cochlear fluid cause the basilar membrane to move, creating ripples. This movement bends the hair cells located on the basilar membrane against the tectorial membrane, which is essential for converting mechanical energy into neural signals.

6. **Generation of nerve impulse and transmission through auditory nerves to the brain (f)**: As the hair cells bend, they generate nerve impulses that are transmitted through the auditory nerve to the brain, where the sound is interpreted.

### Final Order:
1. (e) Sound waves are collected by the pinna.
2. (a) The eardrum vibrates and transmits the sound wave to the ear ossicles.
3. (b) Vibration travels from the oval window to the fluid of the cochlea.
4. (d) Generation of waves in the lymph.
5. (c) Ripples in the basilar membrane bend the hair cells against the tectorial membrane.
6. (f) Generation of nerve impulse and transmission through auditory nerves to the brain.