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Anatomy and Physiology 3.04: The Sympathetic and Parasympath

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by

Allie Mishler

on 18 November 2014

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Transcript of Anatomy and Physiology 3.04: The Sympathetic and Parasympath

Review of Sympathetic and Parasympathetic Nervous systems
Effector Organ Sympathetic Parasympathetic
The sympathetic nervous system
The sympathetic nervous system is responsible for actions like dilating our pupils (so we can take in more sensory information), raising our blood pressure by constricting our blood vessels, and increasing respiration.
Map of the Sympathetic Nervous System
Stimuli
Map of the Parasympathetic Nervous system
Stimuli
The Parasympathetic Nervous system
The Parasympathetic Nervous system is responsible for actions like constricting our pupils and lowering our blood pressure and heart rate.
Anatomy and Physiology 3.04: The Sympathetic and Parasympathetic Nervous Systems
by Allie Rae Mishler
The Peripheral Nervous system can be divided into two parts: the Sensory Somatic Nervous system, and the Autonomic Nervous system. Then, the Autonomic Nervous system can be broken into the Sympathetic and Parasympathetic Nervous Systems. The Sympathetic Nervous System is responsible for preparing us for emergencies and increasing out heart rate, etc. The Parasympathetic Nervous System is responsible for returning our bodies back to homeostasis after excitement.
Sensory Neurons
Interneurons
Pre-ganglionic motor neurons
Ganglia
Post-ganglionic motor neurons
Effector Organ
Sensory neuron
Interneurons
Pre-ganglionic motor neurons
Ganglia
Post-ganglionic motor neurons
Effector Organs
Eye Dilates pupils Constricts pupils
Sweat Gland Stimulates secretion No effect
Heart Increases heart rate Decreases heart rate
Blood vessels Constricts to raise pressure Dilates to lower pressure
Lungs Increases respiration Decreases respiration
Gastrointestinal tract Slows digestion Stimulates movement
Fat cells Stimulates hydrolysis of no effect
fat cells
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