Given below are some of the processes which take place in our ear when we are exposed to any sound. Arrange these in the correct order of sequence. a) The eardrum vibrates and transmits the sound wave to the ear ossicles. b) Vibrations travel from oval window to the fluid of the cochlea. c) Ripples in the basilar membrane bend the hair cells 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.

Question

Given below are some of the processes which take place in our ear when we are exposed to any sound. Arrange these in the correct order of sequence. a) The eardrum vibrates and transmits the sound wave to the ear ossicles. b) Vibrations travel from oval window to the fluid of the cochlea. c) Ripples in the basilar membrane bend the hair cells 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. (A) e, b, a, f, c, d (B) e, a, d, b, c, f (C) e, a, b, d, c, f (D) e, b, d, c, f, a

Tardigrade Admin · Accepted Answer

The external ear receives sound waves and directs them to the ear drum. The ear drum vibrates in response to the sound waves and these vibrations are transmitted through the ear ossicles (malleus, incus and stapes) to the oval window. The vibrations are passed through the oval window on to the fluid of the cochlea, where they generate waves in the lymphs. The waves in the lymphs induce a ripple in the basilar membrane. These movements of the basilar membrane bend the hair cells, pressing them against the tectorial membrane. As a result, nerve impulses are generated in the associated afferent neurons. These impulses are transmitted by the afferent fibres via auditory nerves to the auditory cortex of the brain, where the impulses are analysed and the sound is recognised.