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Parasympathetic Division
...  paraSympathetic division is one of the divisions of the autonomic nervous system that is concerned with digestion, urination and defecation. It has a different effect from that of the Sympathetic division because this division involves the body in a state of rest. Unlike the sympathetic, the parasympathetic decreases respiration and heart rate; hence, it conserves and stores energy instead of  ...

Dual Innervation
...  The SA node, due to its voltage-gated calcium channels, stimulates the rest of the organ to respond. Complementary Dual Innervations These are dual innervations caused by the parasympathetic and Sympathetic divisions that complement each other. The process of digestion demonstrates this perfectly. While the parasympathetic neurons initiate the production of salivary enzymes to start  ...

Sympathetic Division
...  and did not know whether to run away or confront it? Your breath quickens, your ears roar and your heartbeat increases. This is what is called the “fight or flight” response of the Sympathetic division of the body to emergency situations. What is the Sympathetic division? This is a division of the autonomic nervous system that is responsible for preparing the body to fight or  ...


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