1. Our digestive system starts from the mouth and passing through oesophagus , stomach and small intestine finally ends into larger intestine. Absorption of digested food is mainly takes place in small intestine.
2. Bile which is made in our liver breaks down fat in the food we eat.
3. Liver is the largest internal organ. Liver convert sugars and store and release them as needed, thereby regulating our blood sugar level; break down fats and produce cholesterol; remove ammonia from our body and produce blood proteins including blood clotting factors. Jaundice damages liver, sign of jaundice is yellowness in our eyes and skin.
4. Pancrease: - produce insulin which lowers blood glucose levels by stimulating cells throughout our body to use and store glucose.
5. Cerebrum is the largest part of our brain. The front section of our cerebrum, the frontal lobe, is involved in speech, thought, emotion and skilled movements.
6. Cerebellum is the second largest part of our brain. It is involved in coordinating muscles to allow precise movements and control of balance and posture.
7. Thalamus acts as a relay station for incoming sensory nerve impulses, sending them on to appropriate regions of our brain for processing. It is responsible for letting our brain known what is happening outside our body.
8. Hypothalmus plays a vial role in keeping conditions inside our body constant.
9. Artery is a blood vessel that carries pure blood away from the heart towards in organ.
10. Vein is a blood vessel that carries impure blood from an organ towards the heart.
11. An adult man normally have 5.6 litres of blood. The pH of blood is 7.4.
12. RBC are made in embryo by the liver or spleen but after birth they are formed in red bone marrow. Erythrocytes contain a protein called Haemoglobin which gives them red colour.
13. WBC are constantly manufactured in red bone marrow, spleen, thymus and lymph nodes. The main function of WBC are to transport substance, remove dead cells and decaying tissues, fight bacteria and act as guardians of the circulatory system.
14. Our outer ear includes Pinna which collects the sound waves and direct them towards ear drum.
15. Kidney stones are of two types oxalate crystals and urice acid crystals. Uric acid crystals can accumulate in other places in the body as well.
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