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Answer
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Commonly known as the flu, this is a disease caused by viruses such as H1N1 and H5N1
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Influenza
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Any disease caused by micro-organisms as bacteria, viruses or fungi who enter the body
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Infection
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Coloured part of the eye that controls the size of the pupil
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Iris
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The frontmost teeth, of which humans have eight
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Incisor
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A long, tubular organ separated in small and large parts, this is where most nutrients are absorbed
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Intestine
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The final section of the 'small' part of the above, between jejunum and caecum
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Ileum
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A commonly used non-steroidal anti-inflammatory drug, used to treat pain, fever and inflammation
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Ibuprofen
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The left and right continuations of the abdominal aorta, that carry blood for the leg and pelvic region
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Common iliac artery
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This bone is fused with the ilium and pubis to form the pelvis
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Ischium
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Hormone that stimulates the uptake of glucose by cells, a deficiency causes diabetes
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Insulin
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Bodily system that protects against any foreign invaders, includes the white blood cells
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Immune system
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This is a state of redness, swelling, pain and heat, caused when the above is activated
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Inflammation
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Common symptom: can be caused by conditions such as allergy, eczema, or insect bites
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Itch
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Also known as school sores, this is an infection of the skin, usually around the mouth
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Impetigo
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Important metallic element that is used by the body to bind oxygen in red blood cells
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Iron
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A sleep disorder, in which people have trouble falling asleep
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Insomnia
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Specialty that deals with critically ill patients, who need life support and close monitoring
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Intensive Care
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The thyroid gland needs this element to produce its hormones
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Iodine
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Another term for a heart attack, where arterial blockage has caused death of muscle cells
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Myocardial infarction
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Less severe than the total blockage above, a term for a shortage in oxygen and nutrients due to restriction of blood flow
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Ischemia
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