So even though they sent to your eyes, your brain has not developed to interprete these signals properly.

因此，即使投射到你的眼睛里去了，但是你的大脑并未发展到，能够正确地解释这些信号。

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But instead of those signals going to your heart they go into the brain.

但这些电信号针对的不是心脏而是大脑

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There are sensory neurons, which take information from the world so as you see me, for instance, there are neurons firing from your retina sending signals to your brain.

感觉神经元,负责收集外界信息,比如,当你看到我的时候,视网膜上的神经元会产生神经冲动,将刺激信号传递到你的大脑

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Many neurotransmitters that carry signals between neurons in your brain work this way.

在脑部神经元细胞中,传递信号的神经递质分子的,作用原理就是如此

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How do your kidneys know what the status is of inside your blood, They know that because they receive signals from the endocrine system and the nervous system.

肾脏何以得知血液组分的状态,它们能够知道这些是因为它们接收到,来自内分泌系统和神经系统的信号

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The nervous system, the endocrine system which we'll start talking about a little bit today is the system that's responsible for sending signals back and forth between tissues of your body.

还有神经系统,和我们今天将要提到的内分泌系统,内分泌系统主要负责,在体内各组织之间传递信号

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We're used to thinking about sound being tranduced; being converted by acoustic waves into electrical signals that can be recognized by your iPods.

我们想想声音信号的转换过程,声音由声波转化为电子信号,你的iPod能够识别这种信号

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