The Ear​

 

• Ear plays a very important role in human life. It balances the body along with hearing​

 

• Human ear has three parts: outer ear, middle ear, inner ear​

 

• As sound waves fall on the ear, the eardrum vibrates and the vibrations are converted into electrical waves. They travel to the brain via the auditory nerve.​

 

• Pinna collects the sound waves and transmits them from the cochlear tube to the middle ear cavity. A valve-like structure allows sound to reach the middle ear.​

 

• Middle Ear: There is a thin membrane in the cavity of the middle ear. When compression in the medium is reached, it increases the pressure outside the membrane and pushes the eardrum inward, and when rarefaction reaches the membrane, the pressure outside the membrane decreases and the membrane is pushed outward. Thus the sound wave causes the membrane to vibrate.​

 

• Inner Ear: The part of the auditory nerve connects the inner ear to the brain. The inner ear has a circular cavity like a snail's shell called the cochlea. The cochlea receives the vibrations from the eardrum and sends them to the brain in the form of electrical signals through the nerve, which is then analyzed in the brain.​