What did they wear? The Indus valley people were the first in the world to spin cotton and woollen yarn. Needles and buttons have been found there. They knew the art of weaving and stitching. The men used to wear a loin cloth akin to a dhoti that is still worn by a large number of Indians
As the stapes moves, it pushes a structure called the oval window in and out. This action is passed onto the cochlea, which is a fluid-filled snail-like structure that contains the receptor organ for hearing. The cochlea contains the spiral organ of Corti, which is the receptor organ for hearing. It consists of tiny hair cells that translate the fluid vibration of sounds from its surrounding ducts into electrical impulses that are carried to the brain by sensory nerves.
The absolute threshold for hearing is arbitrarily defined as ___ such units. decibals; zero. The ear is divided into three main parts: the ___ ear, the ____ ear, and the ___ ear. outer; middle; inner. The outer ear channels sound waves toward the ___, a tight membrane that then vibrates. eardrum. The middle ear transmits the vibrations through a piston made of three small bones: the ___, ___, and ___. hammer; anvil; stirrup In the inner ear, a coiled bony, fluid-filled tube called the ___ contains the receptor cells for hearing. The incoming vibrations cause the ___ ___ to vibrate the fluid that fills the tube, which causes ripples in the ___ ___, bending the ___ ___ that line its surface.