Question:

Additional parasympathetic ganglia occur in

Updated On: Jul 5, 2022
  • Head and neck
  • Lateral chains
  • Spinal cord
  • All the above
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The Correct Option is A

Solution and Explanation

Parasympathetic ganglia are the ganglia of autonomic nervous system composed of cholinergic neurons receiving afferent fibres originating from preganglionic visceral motor neurons in either the brainstem or the middle sacral segments of spinal cord. There are four paired parasympathetic ganglia of head and neck-pterygopalatine ganglion (found in pterygopalatine fossa), submandibular ganglion (located on hyoglossus muscle), otic ganglion (located immediately below the foramen ovale in the infratemporal fossa )and ciliary ganglion (located in the posterior orbit).
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Neural System:

Neurons are the most specialised cells in the nervous system of all animals, and they are responsible for detecting, accepting, and conveying numerous types of motives. The neurological system of low-spinal animals like Hydra is incredibly simple, consisting of a network of neurons. When the brain of an insect comprises a vast number of ganglia and neural tissues, it is optimally structured.

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