Fun Fact 2: What is the composition of blood? Blood composition consists of the following; plasma, red and white blood cells, platelets, carbon dioxide, glucose, hormones and proteins
Fun Fact 3: Plasma makes up around 55% of our blood; plasma is a watery fluid that carries the components of blood around our body
Fun Fact 4: Blood contains two types of cells: red blood cells and white blood cells. The red cells carry oxygen around the body and remove carbon dioxide, white cells help to fight infection and attack germs
Fun Fact 5: Platelets provide an important role; they help our blood to clot into a sticky consistency which prevents us from bleeding too much
Fun Fact 6: Blood is pumped around your body by your heart. Your heart is a big muscle situated to the left of the middle of your chest
Fun Fact 7: Blood travels around our bodies in tubes called arteries and veins. The arteries carry blood away from the heart and veins carry the blood back to the heart
Fun Fact 8: How many blood groups are there? There are for main blood groups they are: A, B, AB and O
Fun Fact 9: The most common blood group is group O; the least common group is AB
Fun Fact 10: How much blood is in my body? The amount of blood in a body varies according to the individual’s height and weight; as a guide about 8% of the human body weight is blood. On average there are around 3 - 4 litres in a 10-12 year old child and 5 - 6 litres in an adult
Fun Fact 11: You can feel your heart beat in the side of your wrist and to the side of your throat. The feel of your heart beat is called your pulse. Average pulse rates are 75-110 bpm (beats per minute) for a 7-12 year old child and 75-100 bpm for ages 12 and above
Fun Fact 12: Why does my heart sometimes beat faster? If you are excited or exercise your heart beats faster, this is because your heart needs to works harder and faster to get more oxygen to your muscles to help them to work effectively
Fun Fact 13: If all the blood vessels in a human body were laid out they would have a total length of around 97,000 km (60,000 miles); that's long enough to circle the world two and a half times!
Fun Fact 14: How do we stop bleeding? Your blood contains platelets which work like a clotting substance and turns blood into a sticky consistency. When you cut yourself your brain sends messages to the effected part of the body where the clotting and repairing process begins
Fun Fact 15: What is haemophilia? Someone who suffers from haemophilia is not able to clot their blood as effectively as other people. This means that they bleed for longer periods. Haemophilia can be very severe as sufferers can also bleed internally. People who suffer from haemophilia are called haemophiliacs |
