Welcome to dawabazar.in  Register Now | Sign in | Help
Therapy
Therapy area
Therapeutic Area

Ear

The human ear is the organ responsible for hearing and balance. The ear consists of three parts: the outer, middle, and inner ears. Audition is the scientific name for the sense of sound. Sound is a form of energy that moves through air, water, and other matter, in waves of pressure. Sound is the means of auditory communication, including frog calls, bird songs and spoken language. Although the ear is the vertebrate sense organ that recognizes sound, it is the brain and central nervous system that "hears". Sound waves are perceived by the brain through the firing of nerve cells in the auditory portion of the central nervous system. The ear changes sound pressure waves from the outside world into a signal of nerve impulses sent to the brain.

Deafness

Deafness, hearing impairment, or hearing loss is a partial or total inability to hear. Deafness is defined as a degree of impairment such that a person is unable to understand speech even in the presence of amplification. In profound deafness, even the loudest sounds produced by an audiometer (an instrument used to measure hearing by producing pure tone sounds through a range of frequencies) may not be detected. In total deafness, no sounds at all, regardless of amplification or method of production, are heard.

Sandoz Pvt. Ltd.  (Novartis India)Sandoz Pvt. Ltd. (Novartis India)

Novartis-sandoz stockists/Dealers in
More..

Back to Top