How Does the Body Function

Topics: Ear, Auditory system, Inner ear Pages: 2 (701 words) Published: March 13, 2013
“How Does the Body Function?”

Do you consider your body a delicate temple, and do you give any thoughts to the daily functions it provides for you? Well, to name a few, the eyes, ears and skin play a vital role in our lives, and without these precious body parts I believe our life of living free would be limited.

Someone once said that “the eyes provide a window to the soul, they also provide us with a window to the world.” Our vision starts when you look at an object; the light from it enters your eye through the pupil. The iris changes the size of the pupil depending on how bright the light is. The lens focuses the light onto the back of the eye: the retina. The retina is a mass of light –sensitive neurons, called photoreceptors, which change light signals into electrical ones (Feldman 89, Bradford G. Schleifer. “Seeing Clearly”. The Real Truth, July 21, 2011).

Can you hear me now? I know many may think this is a silly question, but there are millions of people that suffer from not being capable of having the full use of their ears, which includes the hearing process. Your ears are in charge of collecting sounds, processing them and sending sound signals to your brain. And that’s not all - your ears also help you keep your balance. The ear is made up of three different sections, beginning with the outer ear also called the pinna or auricle. This is the part of the ear that people can see. The main job is to collect sounds, whether they’re your friends whispering or a dog barking. After sound waves enter the outer ear, they travel through the ear canal and make their way to the middle ear. Its main job is to take those sound waves and turn them into vibrations that are Sams2

delivered to the inner ear. Sounds come into the inner ear as vibrations, and enters the cochlea, a small, curled tube in the inner ear. The cochlea is filled with liquid, which is set into motion, like a wave, when the ossicles vibrate. When sound reaches the...
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