sympathetic and parasympathetic nervous system
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16 Terms
Which system is activated in stressful situations?
The sympathetic nervous system
What is the sympathetic nervous system's response often called?
The fight-or-flight response.
What neurotransmitter does the sympathetic nervous system release?
Norepinephrine (noradrenaline)
Which system is active when the body is calm and at rest?
The parasympathetic nervous system
What is the parasympathetic nervous system's response often called?
The rest-and-digest response
What neurotransmitter does the parasympathetic nervous system use?
Acetylcholine
What is the effect of the sympathetic nervous system on the heart?
Speeds heart rate
What is the effect of the parasympathetic nervous system on the heart?
Slows heart rate
What is the effect of the sympathetic nervous system on the pupils?
Dilates pupils
What is the effect of the parasympathetic nervous system on the pupils?
Constricts pupils
What is the effect of the sympathetic nervous system on the lungs?
Dilates air passages
What is the effect of the parasympathetic nervous system on the lungs?
Constricts air passages
What does the sympathetic nervous system stimulate the liver to do?
Release glucose
What does the parasympathetic nervous system stimulate the gall bladder to do?
Release bile
What is the effect of the sympathetic nervous system on the urinary bladder?
Inhibits urination
What is the effect of the parasympathetic nervous system on the urinary bladder?
Stimulates urination
Note 
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