Chihiro
sen
Level
13
Global Sentinel
500 XP
 
 
The pacemaker is under autonomic (involuntary) control from the brain, specifically the medulla oblongata (brain stem)

Two nerves connected to the medulla regulate heart rate by either speeding it up or slowing it down:

The sympathetic nerve releases the neurotransmitter noradrenaline (a.k.a. norepinephrine) to increase heart rate
The parasympathetic nerve (vagus nerve) releases the neurotransmitter acetylcholine to decrease heart rate
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Wargix 5 Mar @ 12:20am 
+rep thx for game
Chillmane 1 Mar @ 9:13am 
god
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𝙖𝙙𝙙 𝙢𝙚 𝙥𝙡𝙚𝙖𝙨𝙚 𝙗𝙧𝙤 :steamhappy:
F1sh 22 Dec, 2020 @ 10:31pm 
=rep no comment
-gone 17 Dec, 2020 @ 7:28am 
+rep for leading us coming back when we were 3-12. Very humble person, great teammate to play with. That comback was 2 months ago 🤣🤣🤣
gmo cookie 3 Nov, 2020 @ 5:23pm 
-rep didnt use her tits as a pillow for me