SALIVARY GLAND

SALIVARY GLAND

1. Function

   • helps with swallowing and chewing
   • help prevent infections from developing in mouth or throat

2. There are three pairs of major salivary glands

   • the parotid glands
   • the submandibular glands
   • sublingual glands

3. Parotid Glands

   • The parotid glands are the largest salivary glands.
   • They are located just in front of the ears.
   • The saliva produced in these glands is secreted into the mouth from a duct near upper second molar.
   • Each parotid gland has two parts, or lobes: the superficial lobe and the deep lobe.
   • Between the two lobes is the facial nerve.
   • The facial nerve is important because it controls ability to close the eyes, raise eyebrows, and smile.

4. Submandibular Glands

   • About the size of a walnut, the submandibular glands are located below the jaw.
   • The saliva produced in these glands is secreted into the mouth from under the tongue.
   • Nearby structures include:
     • the marginal mandibular nerve, which helps you smile
     • the platysma muscle, which helps you move your lower lip
     • the lingual nerve, which allows sensation in your tongue
     • the hypoglossal nerve, which allows movement in the part of your tongue that helps with speech and swallowing

5. Sublingual Glands

   • The sublingual glands are the smallest of the major salivary glands.
   • These almond-shaped structures are located under the floor of the mouth and below either side of the tongue.

6. Disease

   • Causes of salivary gland problems include infections, obstruction, or cancer.
   • Problems can also be due to other disorders, such as mumps or Sjogren's syndrome

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