The sympathetic division of the ANS arises from the cervical region of the spinal cord.
The sympathetic nervous system is part of the autonomic nervous system, along with the parasympathetic nervous system.
The sympathetic pathway can be divided into three following components:
•The preganglionic neurons,
•The sympathetic ganglia,
•The postganglionic neurons.
It is essential for preparing the body for emergency response in endangering situations, also known as the “fight-or-flight” response.
To prepare the body for this type of response, the sympathetic system activates numerous complex pathways enable the adequate response to a threat or trauma.
Some of these physical effects include: faster breathing, increased heart rate and blood pressure, dilation of pupils, redirection of blood flow to important organs (e.g. brain and muscles) and increased sweating.
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