EVERYDAY SCIENCE

Detailed explanation-1: -Specialized hearing organs, known as tympanal organs, have evolved in at least seven different orders of insects. Tympanal organs are usually defined by the presence of a tympanal membrane (or eardrum). They are backed by an air-filled space or cavity and are innervated by a chordotonal sensory organ.

Detailed explanation-2: -The tympanic membrane is also called the eardrum. It separates the outer ear from the middle ear. When sound waves reach the tympanic membrane they cause it to vibrate. The vibrations are then transferred to the tiny bones in the middle ear.

Detailed explanation-3: -tympanic membrane, also called eardrum, thin layer of tissue in the human ear that receives sound vibrations from the outer air and transmits them to the auditory ossicles, which are tiny bones in the tympanic (middle-ear) cavity.

Detailed explanation-4: -The tympanal organ consists of a thin membrane stretched above an open space. Sound vibrates the membrane and these vibrations are detected by another structure at the base of the open space. The position of the tympanal organ differs between species and can be found on the thorax, abdomen or legs.

Detailed explanation-5: -auditory organs of orthopterans, the tympanic organs on each side of the abdomen, are found in both sexes of grasshoppers and on the front tibiae of most crickets and katydids.