Hearing & Balance: Crash Course A&P #17
Crash Course A&P continues the journey through sensory systems with a look at how your sense of hearing works. We follow sounds as they work there way ...
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Hello! I’d like you to think about how I’m doing this right now. Not why I’m doing it, because of course, I’m doing it because I like music and I like science and I like to do both those things at the same time. But how can I play music? How can I be hearing it right now? And how can I walk around and play my guitar at the same time without falling on my face? And what is even sound anyway? These are all good questions. Let’s start with the last one, first. The basic answer to “What is sound?” goes like this: Sounds create vibrations in the air that beat against the eardrum, which pushes a series of tiny bones that move internal fluid against a membrane that triggers tiny hair cells -- which aren’t actually hairs -- that stimulate neurons, which in turn send action potentials ...
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Hello! I’d like you to think about how I’m doing this right now. Not why I’m doing it, because of course, I’m doing it because I like music and I like science and I like to do both those things at the same time. But how can I play music? How can I be hearing it right now? And how can I walk around and play my guitar at the same time without falling on my face? And what is even sound anyway? These are all good questions. Let’s start with the last one, first. The basic answer to “What is sound?” goes like this: Sounds create vibrations in the air that beat against the eardrum, which pushes a series of tiny bones that move internal fluid against a membrane that triggers tiny hair cells -- which aren’t actually hairs -- that stimulate neurons, which in turn send action potentials ...
