THe physics of the ear Essay Example | Topics and Well Written Essays - 1500 words

THe physics of the spindle - Essay ExampleThe capitulum also plays a role in maintaining physical stability and counterweight of the body.The size of it of the outer ear differs considerably among mammalsfrom the large floppy ears of the hare to the smaller ones for humansthough there is not much difference in its internal functioning across species. The size of the ear canalize is determined by the skin, cartilage and bone formation at this location. Since there is no maturement of cartilage in adulthood, the size of the ear canal remains unchanged. However, the outer ear grows in size through adulthood. Ferrario VF. Sforza C. et al., (19(4)226-33, 1999.) calculated the length of the left exterior ear from apex to the lowest part with a transparent ruler the result (in mms) as well as the patients age, were noted. The results established that as humans grew sure-enough(a) the outer ear correspondingly increased in size.The outer ear (pinna or auricle) is the part viewable to us. Its main function is to lay in sound waves and filter them so the larger it is, it collects more sound waves and focuses them in the right direction. However, this part is not vital to hearing. Besides, the pinna plays no role in the ears function of providing the sense of balance. The outer ear also consists of the ear canal, where wax is produced. Earwax protects the canal by means of the chemicals it contains that keep infections at bay, and also by acting as a barrier to collect dirt, which keeps the ear canal clean. (3 D Ear-Website)The middle ear receives sound waves that move through the ear canal to reach it. The middle ear converts sound waves into vibrations delivered to the inner ear. It does this through the eardrum (tympanum) which is a thin tour of skin stretched tight. The eardrum separates the outer ear from the middle ear and the ossicles, which are the three smallest and most finely crafted bones in the body. The ossicles consist of the malleus (hammer), whi ch is attached to the eardrum, the incus