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Peripheral Ganglia

...  Damage to any of these masses of biological tissue is damage to the Peripheral Nervous System or PNS as well. Receptivity It responds to the synapse of neurons found at splanchnic nerves and the preganglions. The peripheral ganglia involve the inferior mesenteric ganglia, the superior mesenteric ganglia and the cilia. It responds to splanchnic and preganglionic innervations. The splanchnic  ...

Parasympathetic Division

...  be ready for any sympathetic action that may ensue during perceived threats or emergencies. Process It cannot function properly, though, without these essential related parts. Axons are found in preganglionic neurons to form a connection between spinal and cranial nerves, all the way to the terminal ganglia. The preganglions are cell bodies located in the oculomotor nerve, brainstem, vagus  ...

Small Intestine

...  of the absorption of nutrients. The small intestine is innervated by the superior mesenteric plexus. Sensory fibers reach the small intestine through the postganglionic sympathetic fibers and the preganglionic parasympathetic fibers. Blood supply to the small intestine is provided by the celiac trunk and the inferior mesenteric artery, helped along by a direct route from the superior  ...

Thyroid Gland

...  gland comes from the postganglionic neurons from the superior and middle cervical ganglia. Additional innervation is supplied by the second to the seventh segment of the spinal cord with their preganglionic neurons. The thyroid is the gland that produces the hormones thyroxine and triiodothyronine. Plus, it makes a little calcitonin. The two primary hormones that the thyroid secretes are  ...