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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Tagged under: John Green,Hank Green,vlogbrothers,Crash Course,crashcourse,Anatomy,Physiology,Anatomy & Physiology,Sympathetic Nervous System (Anatomical Structure),Nervous System (Anatomical Structure),stress,effectors,acetylcholine,norepinephrine,epinephrine,hormones,receptors,alpha receptors,beta receptors,muscles,smooth muscles,Ganglion (Anatomical Structure)
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