Chapter 1
How nerves send lightning messages
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Chapter 2
Inside the brain's command center
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Chapter 3
The body's automatic survival systems
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Chapter 4
The brain's incredible shape-shifting power
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YOUR GOAL
Master of The body's electrical highway
Ch 3 · The body's automatic survival systems
artiteacher The body's automatic survival systems
Before you even think, your heart begins to race!
Fun Fact
Blushing reflex: Blushing is controlled by your sympathetic nervous system, and the lining of your stomach also turns red when you blush!
Glossary
autonomic nervous system (noun)
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.
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.
Quiz
What unusual organ lining also blushes red when you blush out of embarrassment?
Quiz
Who coined the term "fight-or-flight" to describe the survival response in 1915?
Quiz
What is the scientific term for the stable internal environment your autonomic system maintains?
Quiz
Which nervous system branch operates your body's "autopilot" functions like digestion?