Basic Brain Anatomy - By MITK12Videos
Transcript
| 00:22 | I want you to breathe in and clear your mind | |
| 00:28 | . Now , wave your hand , look around the | |
| 00:30 | room , you're sitting and breathe out . All those | |
| 00:32 | actions were possible because you possess something very special brain | |
| 00:36 | . The brain is responsible for your conscious , like | |
| 00:38 | awake and unconscious like asleep actions . This is a | |
| 00:42 | video that will go through the basic regions of the | |
| 00:43 | brain and what performs with function . The brain is | |
| 00:47 | really complicated and we haven't got it all figured out | |
| 00:49 | yet . But by using science , we can explain | |
| 00:52 | a little of what's going on . Let's start with | |
| 00:54 | neurons . The basic building blocks of the brain , | |
| 00:57 | neurons , acting groups where each neuron type has a | |
| 00:59 | specific function . It could be a neuron type for | |
| 01:02 | faces , or tastes or color or hunger for the | |
| 01:05 | brain to send a message . It doesn't just use | |
| 01:07 | one neuron , but many of them at the same | |
| 01:08 | time , the mourner on sending a message . Likely | |
| 01:11 | it is to be read by the brain . It's | |
| 01:13 | easier for neurons does act with nearby neurons versus those | |
| 01:15 | farther away . So different messages will come from different | |
| 01:19 | areas of the brain sent by different groups of neurons | |
| 01:22 | . For instance , the ones I'm showing you here | |
| 01:24 | , we know that neurons acting group to do similar | |
| 01:27 | actions . So here's a way to think about which | |
| 01:29 | parts of the brain do what , For example , | |
| 01:31 | let's start with the most basic of actions . The | |
| 01:32 | ones you are even 100% conscious of without doing anything | |
| 01:35 | . Your heartbeat breathing , excitatory , hunger and sleep | |
| 01:38 | levels are all being run by the brain stem . | |
| 01:41 | If you look at this model , you'll see the | |
| 01:42 | brain stem is located right below the base of the | |
| 01:44 | skull . In fact , you can just as easily | |
| 01:46 | use your hand as a model for the brain by | |
| 01:48 | curling it up like so the brainstem would be where | |
| 01:50 | the wrist is right below the base of the skull | |
| 01:52 | and the cortex and limbic system , which will go | |
| 01:55 | into later , would be located likewise there and there | |
| 01:57 | you try . This part of our brain is similar | |
| 02:02 | to a lizard's brain in terms of function . This | |
| 02:05 | is because we both share a common ancestor . Our | |
| 02:07 | brain stem is our reflex response system connected to deep | |
| 02:10 | drives to act in certain ways . For instance by | |
| 02:12 | eating when you're hungry , but we don't only respond | |
| 02:15 | automatically to things . We also have feelings . This | |
| 02:18 | comes from olympic region which is located in the middle | |
| 02:20 | of your brain . Feelings can have a huge effect | |
| 02:24 | on our actions and can allow us to connect with | |
| 02:26 | other humans as social creatures When I get a compliment | |
| 02:29 | or look off the side of a really tall building | |
| 02:31 | , my limbic system sends signals throughout my body about | |
| 02:33 | whether to feel warm and fuzzy inside or be paralyzed | |
| 02:36 | by fear . Short term memories are also stored in | |
| 02:39 | this area , which may explain why emotional events make | |
| 02:42 | long lasting memories . Since the neurons were both are | |
| 02:45 | sending messages as a group so I can breathe sleep | |
| 02:49 | and feel fear . But what about thinking , planning | |
| 02:51 | , feeling , seeing , hearing , smelling , tasting | |
| 02:54 | , and understanding the world . All of these things | |
| 02:56 | are done by the cortex , which is the biggest | |
| 02:58 | part of the brain and humans , it's located here | |
| 03:02 | . This is the part of our brain that separates | |
| 03:04 | humans from other mammals and mammals from farther ancestors . | |
| 03:07 | Overall , the cortex gives us long term memory , | |
| 03:09 | reason and free will . We can point out the | |
| 03:13 | occipital lobe in the back of our head , which | |
| 03:15 | is where your site and ability to understand what you're | |
| 03:17 | saying come from at the top of the head is | |
| 03:19 | the parietal lobe which stores sensory data from the body | |
| 03:22 | . In fact the brains folds have been mapped to | |
| 03:24 | certain body parts . The temporal lobe runs on the | |
| 03:26 | side of your head and takes care of how you | |
| 03:28 | here as well as holding memories and emotions like the | |
| 03:31 | limbic region , which is right next to lastly right | |
| 03:34 | at our forehead is the frontal lobe which organizes all | |
| 03:36 | the planning and coordinating movement and that allows us to | |
| 03:39 | dream , build and think about the future . Using | |
| 03:42 | these regions , your brain is capable of infinite actions | |
| 03:46 | . Even as you watch this video , you're using | |
| 03:47 | your occipital and frontal lobes to see process what you | |
| 03:50 | see and think about how cool Neurosciences . You can | |
| 03:53 | trace any of your actions back to a specific region | |
| 03:55 | in the brain and even show where if you might | |
| 03:57 | be using your handy hand model . Whereas sadness , | |
| 04:00 | your sense of taste , your ability to feel empathy | |
| 04:03 | all these and more are locked in your brain , | |
| 04:05 | but organized in such a way that we can make | |
| 04:07 | sense of it and marvel at how smart our brain | |
| 04:09 | really is . |
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Basic Brain Anatomy is a free educational video by MITK12Videos.
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