Autonomic Nervous System: Crash Course Anatomy & Physiology #13

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Hank takes you on a tour of your two-part autonomic nervous system. This episode explains how your sympathetic nervous system and parasympathetic nervous system work together as foils, balancing each other out. Their key anatomical differences – where nerve fibers originate and where their ganglia are located – drive their distinct anatomical functions, making your sympathetic nervous system the “fight or flight” while your parasympathetic nervous system is for “resting and digesting.”

Pssst… we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ

Chapters:
Introduction: Autonomic Nervous System 00:00
Sympathetic & Parasympathetic Nervous Systems 1:35
Origins – Comparing the Sympathetic & Parasympathetic Nervous Systems 3:23
Ganglia – Comparing the Sympathetic & Parasympathetic Nervous Systems 4:11
Axon Lengths – Comparing the Sympathetic & Parasympathetic Nervous Systems 5:30
Review 7:35
Credits 8:28

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36 Comments

  1. Nah ron would be the guy to diagnose the situation, hermionie would be the one to actually perform the spell is more fitting towards the characters since that situation makes ron sound like an idiot.

  2. this one was art. really well done. it would have been easy to just state pre and post ganglionic fibers. but he explains WHY it makes sense

  3. Hank is underrated people say he is reading a script and while thats quite true the way he presents the data is because he understands it and the analogys he gives is something a bit too good to say he is just acting in reality he is just better than most professors and his glasses and the way he is shows and how he talks is proof enough he was the social nerd that everyone asked for help in school

  4. Am I the only one who's in 7th grade trying to understand these videos because I want to be a neurologist when I'm an adult?

  5. Wanted to take a second to Thank everyone from crash course for the wonderful videos that help me understand what is going on in Anatomy and physiology
    Thank you all

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