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 solve the problem of arranging the processes that occur in our ear when exposed to sound, let's break down the steps in the correct order:

1. **(e)** Sound waves are collected by the pinna.
- The outer ear, known as the pinna, collects sound waves from the environment.

2. **(a)** The eardrum vibrates and transmits the sound wave to the ear ossicles.
- The collected sound waves travel through the auditory canal and hit the eardrum, causing it to vibrate.

3. **(b)** Vibration travels from the oval window to the fluid of cochlea.
- The vibrations from the eardrum are amplified by the ossicles (hammer, anvil, stirrup) and transmitted to the oval window, which leads to the cochlea.

4. **(d)** Generation of waves in the lymphs.
- The vibrations create waves in the fluid (lymph) inside the cochlea.

5. **(c)** Ripples in the basilar membrane bend the hair cells against the tectorial membrane.
- The waves in the fluid cause the basilar membrane to ripple, which bends the hair cells against the tectorial membrane.

6. **(f)** Generation of nerve impulse and transmission through auditory nerves to the brain.
- The bending of hair cells generates nerve impulses, which are then transmitted through the auditory nerves to the brain for interpretation.

Thus, the correct order of processes is: **E → A → B → D → C → F**.