sympathetic
~:- -Fight or Flight
-Adrenergic Nuerons
-For situations that require alertness and energy
-Increases caardiac output, increase RR, released store energy, dilates
pupils
-In emergencies lowers needs from things like digestion and urination
Parasympathetic
~:- -rest and ...
✓ -For situations that require alertness and energy
✓ -Increases caardiac output, increase RR, released store energy, dilates
pupils
✓ -In emergencies lowers needs from things like digestion and urination
Parasympathetic
✓ ~:- -rest and digest
✓ -Cholinergic neurons
✓ - Used in regular situations (restores and conserves)
✓ -slows down heartbeat, decreased RR, stimulates digestion, stores
weight
Drugs affecting the Sympathetic (Adrenergic) Nervous System
-Alpha- Adrenergic physiological activities
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✓ ~:- -vasoconstriction of arterioles/ higher BP
✓ -pupil dilation
✓ -intestinal relaxation
Drugs affecting the Sympathetic (Adrenergic) Nervous System
-Beta-adrenergic physiological activities
✓ ~:- -Increased heart rate
-increased contractility
-vasodilation of arterioles supplying skeletal muscles
-bronchial relaxation
-uterine relaxation & smooth muscle relaxation
Drugs affecting the Sympathetic (Adrenergic) Nervous System
Primary use:
Alpha 1 receptors:
✓ ~:- Nasal congestion, hypotension, dilation of pupils
Drugs affecting the Sympathetic (Adrenergic) Nervous System
Primary use:
Alpha 2 receptors:
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