Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4

Report on visit to Medway Hospital.

Extracts from this document...

Introduction

AS Physics Coursework - Report on visit to Medway Hospital. At the hospital we were taken round many departments in which physics could be seen clearly at work, I have chosen to look specifically at X-rays and Ultrasound. Ultrasound Ultrasound is used mainly in three areas of medicine; Obstetrics, Cardiology and Urology. Ultrasound is most widely known for its uses in Obstetrics which is the branch of medicine which deals with women through pregnancy and child birth. During pregnancy Ultrasound can be used to check the size of the foetus to estimate the due date, the sex of the baby, the position of the foetus, to detect an ectopic pregnancy or even to monitor the baby during specialist procedures such as amniocentesis. This is just a brief outline of how ultrasound is used in Obstetrics. Ultrasound is used in Cardiology to identify abnormal structures of the heart and to measure blood flow through the heart and major blood vessel. ...read more.

Middle

X-Rays X-Rays are used widely throughout medicine in various ways and forms. They are most widely known for their usefulness in detecting fractures or breakages in bone, they are used in many other ways. They can be used to detect cavities, swallowed objects and look at softer tissue like lungs or blood vessels or even to find tumours. X-Rays were first discovered in 1895 by Wilhelm Roentgen a German physicist. He named them X-radiation because of their mysterious nature at the time. He found that they could pass through many objects that reflected visible light and could dislodge electrons from atoms. X-rays are a form of Electromagnetic energy like visible light they carry energy in particles known as photons. X-rays have a higher energy level and shorter wavelength than visible light. Our eyes can't detect the high wavelength of X-rays so they appear invisible to the naked eye. An x-ray can be created in one of two ways. ...read more.

Conclusion

The body's soft tissue doesn't absorb x-rays very well Medical x-ray machines use this characteristic to take pictures of things inside a person's body. The x-rays pass through the soft tissue of the human body and are mostly absorbed by the bones and harder tissues. Under the part which is being x-rayed there is a slide of x-ray film as the x-rays hit it they darken it, the higher energy level the wave has when it hits the darker the film goes. The x-rays that pass through bone and harder tissue have less energy as it has been absorbed into the body. Once the film is processed in an automated machine a film is produced so that a radiographer can analyse the film and send a report to the doctor. One of the major new advances in x-ray technology is digital scanning which is already being used in some hospitals. This innovation will enable radiographers to render a computer image of the x-ray this means that it can be analysed much more quickly and will cut costs greatly. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Energy, Respiration & the Environment section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Energy, Respiration & the Environment essays

  1. Marked by a teacher

    Pulse Rate-Lab Report

    3 star(s)

    In order to confirm my hypothesis, I thus carried out calculations to find out which individual had a higher % change in pulse. The average change in Pulse Rate for both Exercises for Females was 20.17% while for Males was 32.50%.

  2. Why the Body Needs Energy? Every living cell within the ...

    digestive system is a conveyor belt then the enzymes are the machine and workers that slowly change whatever is on the belt to make it smaller and smaller so then eventually it can be carried around the body threw the blood.

  1. Malaria Issue Report

    approximately 22% of all childhood deaths.[6] Malaria is a disease that only occurs in certain climates, due to the fact that malaria is passed on through mosquito bites so only certain countries and regions have the conditions that mosquitos can survive in are affected by the disease; this includes sub-Saharan

  2. Field trip report Mangrove ecosystem

    Make sure that all readings are identical. 2. Record the change in height and gradient of the beach surface by the following steps: a. Place one ranging pole at 0m (point A in the diagram) by the transect line and the other at 10m (point B in the diagram)

  1. Energy absorbed by a bouncing ball.

    This is just one method that I could choose from to get my results but I have chosen to use this method as it is simple to perform, easily available for me to carry out and because I think that this will get me the necessary reliable results that I require.

  2. Yeast Coursework

    As a result, too high temperatures reduce enzyme activity. All enzymes have an optimum temperature, which is the point in which the enzymes are most active. Most enzymes in humans have an optimum temperature of about 37°C, but in most plants it is 25°C. There are some molecules that change the possibility that an enzyme will bind to its substrate.

  1. Eyesight coursework

    contains a prescription for nearsightedness or farsightedness, while the lower portion of the lens holds the stronger near prescription for close work. Bifocal lenses offer a more gradual visual transition between the two prescriptions, with no visible lines between them.

  2. Industrial Visit - White Horse Leisure Centre, Wantage.

    Trampolines This is a piece of equipment used by gymnasts in the main sports hall at the leisure centre. Its purpose is to give an elastic surface on which gymnasts jump the elastic surface allows energy to be stored this is then transferred to the gymnast propelling them back up.

  • Over 180,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work

Marked by a teacher

This essay has been marked by one of our great teachers. You can read the full teachers notes when you download the essay.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review on the essay page.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review under the essay preview on this page.