• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

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

    Investigation on the size of Limpets.

    5 star(s)

    The limpets found on the upper shore had a higher height/base ratio than the limpets found on the lower shore. This is because the limpets have adapted to the conditions that are found on the upper shores and lower shores.

  2. Marked by a teacher

    Pulse Rate-Lab Report

    3 star(s)

    the end of 2 minutes ±0.05, thus seeing the effect of exercise on pulse rate 7. Both sets of individuals, males are females were used in both sets of exercise to see the difference in heart pulse 8. Same individual was used for the two sets to ensure reliable results.

  1. The Pancreas is a large gland that forms part of the Endocrine System, but ...

    There is only slight subjectivity with the colour change but can be interpreted very well. Advantages & Disadvantages: In this test, I found it hard to interpret the end point when using Universal Indicator but when I switched to Methyl Red, the end point became easier to establish.

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

    Reference: http://www.cts.usc.edu/lungvolumereductionsurgery.html Website viewed on 24 / 5 / 08 The Brains Role in Breathing. The two centres of the brain are involved in the respiratory centre in the medulla oblongata and the Pons varolii. * The respiratory centre stimulates inspiration and controls the depth of breathing and its regularity.

  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. Field trip report Mangrove ecosystem

    It is next to the Kei Ling Ha Hoi. The fresh water outlet to it may run from the underground water of Shap Sz Heung and Ma On Shan. A map showing the location of Sai Keng Sai Keng consists of 13 species, dominated by Kandelia candel and Aegiceras corniculatum.

  1. 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.

  2. Malaria Issue Report

    By 2010 the proportion of mosquitoes resistant to Deltamethrin was 37%.[11] Testing Malaria parasites in the blood can best be detected under a microscope, but, when this is not available malaria cases can also be quickly and accurately identified using a Rapid Diagnostic Test (RDT).

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work