Classroom visuals
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![Brain and Main Nerves of the Human Body]()
Brain and Main Nerves of the Human Body
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![Nervous System]()
Nervous System
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![Cross section of Spinal Cord]()
Cross section of Spinal Cord
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![Brain]()
Brain
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![MRI Scans]()
MRI Scans
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![Eye]()
Eye
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![Hearing]()
Hearing
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![Taste Buds]()
Taste Buds
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![Touch]()
Touch
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![Five Sensory Organs]()
Five Sensory Organs
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![Human Brain]()
Human Brain
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![Puberty and Emotions]()
Puberty and Emotions
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![Puberty and Sleep]()
Puberty and Sleep
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![Boys Playing a Video Game]()
Boys Playing a Video Game
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![Puberty and Learning]()
Puberty and Learning
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Nervous System Organization (labeled)
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Nervous System Organization (unlabeled)
Film info
Film summary
Danger elicits an instinctive biological response. Find out which hormones control whether we run away or stand our ground and fight.Key facts
- At the first sight of danger, messages are sent to the brain via the optic nerve.
- The fear center within the brain, the amygdala, triggers a release of epinephrine
- Epinephrine makes us breath deeper, speeds up the heart and allows oxygen to circulate faster.
- The body prepares for sudden movement – either fight or flight.
Transcript
We all get scared of different things.
Fear is so important for our survival that we do something absolutely remarkable.
Our bodies begin to react to a threat before we are even consciously aware of what the threat might be.
Because when we are faced with danger, milliseconds count.
At the first hint …
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