MediHealth

  • Lactose intolerance
    Updated: Dec 22, 2009 - 11:37

    Lactose intolerance is a problem your body has with absorbing lactose. Lactose is a type of sugar found in milk, so you actually become intolerant of milk. To be absorbed, lactose must be broken down into two smaller sugars by an enzyme called lactase in your small intestine. If there is not ...

  • Large intestine
    Updated: Nov 17, 2009 - 13:22

    Your large intestine (also called your colon) is the part of the gastrointestinal tract that processes waste food. Food leaving your small intestine moves into your large intestine. There, water is re-absorbed and waste (poo!) is prepared to leave your body. You need to eat lots of fibre to keep ...

  • Leukaemia
    Updated: Sep 24, 2009 - 10:43

    Leukaemia means cancer of the blood. It’s a problem with how white blood cell are made. They don’t grow properly and don’t do their job of defending your body against germs! As well as not growing properly, these white blood cells also grow very quickly in your bone marrow, then they spill ou...

  • Leukotriene
    Updated: Nov 17, 2009 - 13:23

    Leukotrienes are a type of hormone. They are involved in producing the symptoms of allergic reactions, asthma and eczema. When your body produces leukotrienes, histamine is usually produced at the same time. Leukotrienes also play big roles in inflammation and bronchoconstriction. ...

  • Limbic system
    Updated: Nov 17, 2009 - 13:23

    Your limbic system is your emotions factory, so it helps you to feel things like anger, happiness, sadness and fear. It is deep inside your brain, and gets information about what you see from your occipital lobe, about what you hear from your temporal lobe, and about what your body feels from you...

  • Liver
    Updated: Nov 17, 2009 - 13:23

    Your liver is your body's petrol tank. It stores glucose, helps in digestion and gets rid of waste products. It also plays a major role in metabolism. ...

  • Lobule
    Updated: Nov 17, 2009 - 13:23

    Lobules are small groups of cells that are found in your mammary glands. They are what make milk when women have babies, and are surrounded by supportive fatty tissue called stroma. ...

  • Long sightedness
    Updated: Nov 17, 2009 - 13:23

    Long sightedness, also called hypermetropia, is a problem with your vision. It is often inherited. It can also be linked to other eye conditions, like a squint, but sometimes you can be long sighted and no one knows why! You can usually see things far away better than you can see things close ...

  • Lung transplant
    Updated: Dec 01, 2009 - 14:36

    A lung transplant is a type of surgery. Your doctor may suggest a lung transplant if you have problems with your lungs that are not getting better with medication, like cystic fibrosis for example. If you have a lung transplant, your lungs are removed and replaced by healthy lungs that come from ...

  • Lungs
    Updated: Nov 17, 2009 - 13:24

    Your lungs are like two big balloons that sit inside your chest. They automatically inflate and deflate every time you breathe. Air in your lungs goes through bronchi, which branch into bronchioles and end in alveoli.The larger bronchi are lined with muscle, and without this muscle layer, your lu...

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