• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9

Give an account of the physiological effect of 3 recreational drugs on the human body

Extracts from this document...

Introduction

Give an account of the physiological effect of 3 recreational drugs on the human body Name: Behrooz Khoshooee Student Number: 283644 Biology, April 2006 Introduction This paper would look into three different recreational drugs and their physiological affect on human body. These drugs are Nicotine, Alcohol and Ecstasy. We will study each drug and explain how they would affect different body systems. Nicotine For many years people have been smoking or chewing the leaves of tobacco plant which is a main source of nicotine. Nicotine is an organic compound made of carbon, hydrogen and nitrogen; this type of compounds is called alkaloid and they have intoxicating effect on human body. Another alkaloid compounds which we enjoy their effect on our bodies is caffeine (O'Connell). In human body nicotine would spread through skin, lungs and our Mucous membranes (i.e. the lining of our nose or gum). So from those areas nicotine would move into the blood vessel and than move to brain before spreading to the rest of body. Nicotine doesn't stay very long in human body and it has half-life of about 60 minutes (O'Connell). Effect of Nicotine on Body Nicotine would change the way brain and body works. One of the first changes would be a rapid release of adrenaline. Adrenaline is normally known as the Fight or flight hormone. ...read more.

Middle

Alcohol would leave the body with help of kidney and liver (and lungs) and that is where it could do a lot of damage and cause long-term problems (Freudenrich). In kidney blood will be filtered and alcohol would turn into urine and leave the body. Kidneys would do the same for any other drug which means alcohol or any other poisons will travel through our kidneys. So drinking more alcohol means more exposure of our kidneys to alcohol and more damage to its tissues. Although kidneys are tough but they are not unconquerable and consuming alcohol could cause in temporary failure or slowly getting damage and causing in permanent failure (Kidney centre). After filtering the blood, kidneys have another function and that is to control the water level of body. So when body needs more water the pituitary gland in our brain would releases vasopressin hormone, this hormone is also called anti-diuretic hormone "ADH". These hormones would make nephron filters to not let water leave our body and pass more water back into blood stream. Each kidney has millions of nephrons, they are collection of capillaries where waste can filter through the cell walls and can then be removed (Kidney Link). Pituitary gland is controlled by hypothalamus, this is part of brain that not only control pituitary gland but controls many automatic functions of brain through actions on the medulla. ...read more.

Conclusion

dancing) he/she is losing salts through sweating. At the same time some people drink lots of water which it would dilute the salt in blood and the salt level would be lowered to a dangerously low level. This would cause some body systems to fail and body would start showing sings of emergency or crisis like vomiting, confusion and one of the main signs is their brain would start to swell which is called brain edema and this could lead to brain damage and death (Erowid). This has been known as the most common reason for any ecstasy related death. Conclusion Although by using these drugs you might feel good about yourself, feel more confidence, be able to work better, concentrate better or dance all night but at the same time you are damaging your body and some of these damages could be permanent. Another problem with these drugs is being addictive, after while using them you wouldn't feel the same with out them and you become dependent on them. So you would use more drugs to feel the same and damaging your body more at the same time. The main outcome of this paper would be that these drugs are no benefit to human and their body and if you haven't used them so far don't try them and if you are using them its time to stop. Reference: Books: Royal college of physicians, "The medical consequences of alcohol, a great and growing evil" Ralph E. Tarter and David H. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Humans as Organisms 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 GCSE Humans as Organisms essays

  1. Marked by a teacher

    Biology Revision notes - Human Biology

    5 star(s)

    Different lenses in glasses - concave for short sightedness and convex for long sightedness * Contact lenses - same as glasses but without the frame Testing Vision We use a Snellen chart to test our sight. Colour blindness: there are several types of light receptor cells in the retina: *

  2. Human biology short notes

    flow of blood to muscles * Triggers the change of glycogen to glucose (Due to increased respiration by cells) * Pupils Dilate * More sweating Anti-diuretic Hormone (ADH) Site of Production- The Pituitary Gland Cause if Production-Released in response to low blood water level Effect-Makes the walls the CD more

  1. The physiological effects of alcohol on the human body

    These areas will not be focused upon due to the size of each individual topic. Alcohol has an affect on the Central Nervous System (CNS), (i.e. the brain, the spinal chord and the nerves originating from it) responsible for co-ordinating the senses, perception, speech and judgement, it produces slurring of speech and errors in the thinking process.

  2. Factors affecting heat loss from the body

    Being well supplied with blood vessels and covered with relatively short hair, ears make especially good radiators of heat. Animals in colder climates have a tendency to be more compact, with smaller extremities, than related species in warm climates. In this way heat loss is reduced. 3 4 Safety 1.

  1. Stem Cell Research

    This creates a skewed perception that the reader gains towards embryonic stem cells, as they are not provided with all of the facts (only those against embryonic stem cells). Even the title "the ethical issues", shows that this book's main focus is to present an argument against embryonic stem cell research and not present a fair and unbiased discussion.

  2. Should abortion be illegal?

    Healthy women take only an hour or so to recover and most go home the same day. Methods used for later abortions will depend on the stage of pregnancy. The exact procedure will be explained by a doctor or nurse before the abortion goes ahead.

  1. The Biological and Psychological Impact of Smoking Cigarettes

    They all have a centre called a nucleus. Inside the nucleus are the genes. Genes are really bits of code. The information they carry can be switched on or off. The genes control the cell. They decide when it will reproduce, what it does and even when it will die.

  2. How Ultrasound Works.

    When an electric current is applied to these crystals, they change shape rapidly. The rapid shape changes, or vibrations, of the crystals produce sound waves that travel outward. Conversely, when sound or pressure waves hit the crystals, they emit electrical currents.

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