QS Study

In humans, the two parotid glands are present on either side of the mouth and in front of both ears. It is the largest salivary gland situated below the external acoustic meatus, between the ramus of the mandible and the sternomastoid. They are responsible for producing saliva to aid in chewing and digesting food.

Secretomotor supply of parotid gland

Parasympathetic nerves are secretomotor –

  • The preganglionic fibers arise from the inferior salivary nucleus of modula oblongata.
  • Pass through the glossopharyngeal nerve.
  • It’s tympanic branch.
  • Tympanic plexus.
  • The lesser petrosal nerve.
  • The relay in the otic ganglion.
  • Post ganglionic fibers pass through the auriculotemporal nerve and thus supply the gland.
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