Ct Scan Vs X-Ray Scan

A CT scan, CT standing for computed tomography, uses X-Rays from many different angels to make a detailed picture of the structures inside the body. It allows doctors to see what is happening inside the body without having to cut somebody open. A CT scan is taken in a donut shaped ring and a bed, the bed gets rolled into the scanner. An MRI, standing for magnetic resonance imagining, use strong magnetic fields to make photos of the organs in a person's body without cutting the body open. An MRI machine does not use X-rays to make photos. MRI scans take much longer time t produce a detailed photo and is a lot more noisy than CT scans. Another difference between MRI scans and CT scans is that CT scans are suitable for bone injuries, lung and chest imagining and cancer detection. While MRI scans are suitable for soft tissue evaluation, e.g., ligament and tendon injury, spinal cord injury, brain tumors, etc.

These cells respond to the mechanical sound vibrations by sending electric frequencies. The human ear, that is healthy can hear sounds ranging from 20Hz to 20,000Hz.Over time the hair like cell stereocilia may wear out and become damaged. As a result, this can cause hearing damage. Sound pressure is measured in dB and a average person with good hearing can hear down to zero dB, people with extremely good hearing can hear down to -15dB. When a sound reaches 85 dB or stronger damage starts to happen to the hearing of a person. The amount of time that you are exposed to loud noises also affects how severe the damage will be. If you are exposed to loud noises for a long time there is a very big chance that you get ear damage. Most people underestimate how loud sounds can be, a regular conversation can reach up to 60 dB, which does not cause any damage. However a personal sound machine can easily reach up to 100 dB which can cause damage to your ears in just 15