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Sympathetic Nervous System: Crash Course A&P #14
- Published_at:2015-04-13
- Category:Education
- Channel:CrashCourse
- tags:
- description: Hank tries not to stress you out too much as he delves into the functions and terminology of your sympathetic nervous system. -- Table of Contents Sympathetic Nervous System Controls the Body's Stress Response 0:26 How Signals Travel to Effectors 1:48 Acetylcholine in the Ganglion 3:55 Norepinephrine at the Effector 4:42 Norepinephrine and Epinephrine Are Secreted as Hormones 5:35 Alpha Receptors Cause Smooth Muscles to Constrict 7:14 Beta Receptors Cause Smooth Muscles to Relax 7:27 *** Crash Course is now on Patreon! You can support us directly (and, for the next month, have your contributions matched by Patreon!) by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer, Simun Niclasen, Brad Wardell, Roger C. Rocha, Jan Schmid, Elliot Beter, Nevin Spoljaric, Sandra Aft, SR Foxley, Jessica Simmons, Stefan R. Finnerup, Jason A Saslow, Robert Kunz, Jessica Wode, Mike Drew, Steve Marshall, Anna-Ester Volozh, Christian Ludvigsen, Jeffrey Thompson, James Craver ***SUBBABLE MESSAGES*** TO: Ariela FROM: Gavi I love you so much, stay awesome as always! -- TO: Josiah P. FROM: Amy P. I love you! ***SUPPORTER THANK YOU!*** Thank you so much to all of our awesome supporters for their contributions to help make Crash Course possible and freely available for everyone forever: Pankaj Gurung Kelley Culp Joshua McKee Amory Olson: Kasson-Mantorville High School Science Instructor Jack Thakar Arrow Worthy Magnus "Krox" Krokstad Rachel Lee Brian J. Rolf Sylien -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
| ranked in date | views | likes | Comments | ranked in country (#position) |
|---|---|---|---|---|
| 2015-04-16 | 49,912 | 1,767 | 130 |
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| 2015-04-17 | 62,482 | 1,947 | 144 |
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| 2015-04-18 | 69,528 | 2,050 | 164 |
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