How does anesthesia work? - Steven Zheng
View full lesson: http://ed.ted.com/lessons/how-does-anesthesia-work-steven-zheng When under anesthesia, you can't move, form memories, or — hopefully — feel pain. And while it might...
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If you've had surgery,you might remember starting to count backwards from ten,nine,eight,and then waking up with the surgery already over before you even got to five.And it might seem like you were asleep, but you weren't.You were under anesthesia,which is much more complicated.You were unconscious,but you also couldn't move,form memories,or, hopefully, feel pain.Without being able to block all those processes at once,many surgeries would be way too traumatic to perform.Ancient medical texts from Egypt, Asia and the Middle Eastall describe early anestheticscontaining things like opium poppy,mandrake fruit,and alcohol.Today, anesthesiologists often combineregional, inhalational and intravenous agentsto get the right balance for a surgery.Regional a...
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If you've had surgery,you might remember starting to count backwards from ten,nine,eight,and then waking up with the surgery already over before you even got to five.And it might seem like you were asleep, but you weren't.You were under anesthesia,which is much more complicated.You were unconscious,but you also couldn't move,form memories,or, hopefully, feel pain.Without being able to block all those processes at once,many surgeries would be way too traumatic to perform.Ancient medical texts from Egypt, Asia and the Middle Eastall describe early anestheticscontaining things like opium poppy,mandrake fruit,and alcohol.Today, anesthesiologists often combineregional, inhalational and intravenous agentsto get the right balance for a surgery.Regional a...
