Sympathetic and Parasympathetic Nervous System
Parasympathetic nervous system pathways?
Longer pathways, slower system.
Sympathetic nervous system pathways?
Very short neurons, faster system
Sympathetic nervous system function?
Control the body's response during perceived threat.
Parasympathetic nervous system Function?
Control the body's response while at rest.
Effect of parasympathetic nervous system?
Decreases heart rate, bronchial tubes constrict, muscles relax, pupils constrict, increased stomach movements and secretions, increased saliva production, increase in urinary input.
Sympathetic nervous system activates response of...
Fight-or-flight
Effect of sympathetic nervous system
Increases contraction, heart rate, bronchial tubes dilate, muscles contract pupils dilate, decreases stomach movement and secretions, saliva production decreases, releases adrenaline, converts glycogen to glucose for muscle energy, decrease in urinary output
Parasympathetic nervous system activates response of...
Rest and Digest.
Where do parasympathetic nerves originate from?
Spinal cord, medulla.
Sympathetic nerves originate in...
Spinal cord, thoracic and lumbar spinal cord.