
How nerves send lightning messages
Inside the brain's command center
The body's automatic survival systems
The brain's incredible shape-shifting power
YOUR GOAL
Master of The body's electrical highway
artiteacher The body's automatic survival systems
Before you even think, your heart begins to race!

artiteacher Once danger passes, a calming system slows your heart and restarts digestion so you can recover.

artiteacher When you encounter danger, your brain instantly triggers a cascade of physical changes to help you run or fight.

artiteacher Trace the body's electrical sparks to discover how your nervous system runs on autopilot.
Blushing reflex: Blushing is controlled by your sympathetic nervous system, and the lining of your stomach also turns red when you blush!
The part of the nervous system that regulates involuntary bodily functions, such as heartbeat and digestion. British physiologist John Newport Langley coined the term in 1898 to describe these involuntary neural pathways.
What unusual organ lining also blushes red when you blush out of embarrassment?
Who coined the term "fight-or-flight" to describe the survival response in 1915?
What is the scientific term for the stable internal environment your autonomic system maintains?
Which nervous system branch operates your body's "autopilot" functions like digestion?
