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Sympathetic Nervous System – Stress (PSY)

by Tarry Ahuja, MD
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    Now, a stress is presented itself, how are you actually dealing with that in terms of how's your body dealing with it. So physiologically speaking, we are going to talk about what happens to your body. So there's two systems that get activated in parallel. I mean they both being activated at the same time. Both have different roles and both do it at a different pace. Sympathetic nervous system which we had talked about previously. And the HPA-axis, we're going to describe what that actually means in the next coming slides. So the sympathetic nervous system initiates or moderates something called the fight or flight response. Again something we mentioned before and you'll continue to see. And this is when your body is presented with an acute stressor and or something that's in front of you right now, a lion attacking. As you can see here we have a lion attacking. And you're forced to make a decision. Am I going to put on my gladiator helmet, get oiled up and fight this tiger. Or am I going to turn around and run away so that the tiger does not devour me. So you are going to fight or you are going to run away. So this is something that's mediated about this sympathetic nervous system. And it's usually quite fast. Very fast-acting. You need to think of a situation that may be happened to you. It's not something you mull over the next few minutes. So what's happening here is your body is responding to this. And the sympathetic nervous system is actually releasing something called a "Stress Hormone." And this comes from the adrenal glands. And the adrenal glands actually release something called Adrenaline or Noadrenaline. Something that's known as epinephrine norepinephrine. And these will mitigate and...

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    The lecture Sympathetic Nervous System – Stress (PSY) by Tarry Ahuja, MD is from the course Responding to the World.


    Author of lecture Sympathetic Nervous System – Stress (PSY)

     Tarry Ahuja, MD

    Tarry Ahuja, MD


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    Great lecture!
    By Robin S. on 05. December 2016 for Sympathetic Nervous System – Stress (PSY)

    Clearly explained and very engaging. Spoke at a good pace. diagram was a useful demonstration easy to grasp and understand. Brilliant!