Sympathetic Nervous System 
Sympathetic Nervous System
by Crash Course
Video Lecture 14 of 47
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Views: 1,146
Date Added: August 11, 2016

Lecture 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


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Course Index

Course Description

In this Crash Course series, Hank Green teaches most of what you should know about anatomy and physiology, perfect for a freshman-level biology course, or just your own curiosity about the human body.


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