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Hypodermic syringe | Do you know



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Hypodermic syringe | Do you know A hypodermic syringe is a small glass piston or barrel syringe with a detachable, hollow needle that is used to give injections. It was in the 1850s that the French veterinary surgeon Charles Gabriel Pravaz and the Scottish doctor Alexander Wood developed this instrument. It had a hollow needle fine enough to pierce the skin. The barrels were initially made of metal, but by 1866, they were made from glass to enable doctors to see how much of the medication remained in the barrel. Hypodermic syringe may also be used to take liquid samples from the body, for example to take blood samples from vein for testing. The hypodermic syringe is an important milestone because, before its invention, medicines could be introduced directly into the body only by making an incision or cutting opens the skin. The hypodermic syringe made it possible to give an injection by just pricking the skin, to introduce the medicine directly into the bloodstream. This video : https://youtu.be/HZWrzQT7YZY my youtube channel : https://www.youtube.com/channel/UC0mPovGR1HKgyYWZimR6_rw facebook pages: https://www.facebook.com/srimagarishi/ https://www.facebook.com/hirtiha/ https://www.facebook.com/saravanaa.mani My Twitter link https://twitter.com/SRIMAGARISHI My Reddit https://www.reddit.com/user/SRIMAGARISHI/


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