Question

Give a biological reason for 'We should not put sharp objects into our ears'.

Answer 1

Hint:The ears are the organs that help us to hear and interpret sound. The ear canal is a small passageway that leads to the ear. Sound moves in waves through the ear canal to the ear.

Complete answer:
We can hear with the aid of an extraordinarily sensitive organ called the ear. It helps us to convert pressure differences in air with audible frequencies into electrical impulses that pass across the auditory nerve to the brain.

The ear is divided into three regions- outer, middle and inner ear. The outer ear is called a pinna and is composed of rigid cartilage coated with tissue. It picks up the sound from the surroundings. The sound collected travels through the auditory canal. There is a thin membrane called the eardrum or the tympanic membrane at the end of the auditory canal. Sound enables the ear and its small bones to vibrate in the middle of the ear, and the vibrations are transferred to the surrounding cochlea. The spiral-shaped cochlea is part of the inner ear; it converts the sound into nerve impulses that travel to the brain.

Improper cleaning of the ear with hard or sharp objects can lead to infections or perforation of the eardrum. We should not put any sharp objects into our ears. Cleaning the ear with a cotton swab will drive wax further into the ear, where it can be stuck. Irritating the ear canal with a cotton swab may lead to an inflammation of the ear canal.

Note:Earwax is formed naturally in the ear canal. It protects and moisturises the surface of the ear canal. It also contains specific chemicals that prevent infections and serve as a barrier between the external atmosphere and the ear.