Minggu, 24 Maret 2013

Salivary Glands

Salivary Glands:
  1. The minor and major salivary glands develop as buds of the oral ectoderm which secrete saliva.
  2.  The minor salivary glands are widespread and are present under the mucosa of the lips, cheeks, palate, and tongue.
  3. The major salivary glands are paired organs, secreting serous (parotid) or mixed serous and mucous (submandibular and sublingual) saliva.
  4. Causes of enlargement of major salivary glands:
  •     i) Unilateral enlargement is due to inflammation, cysts, or neoplasms
  •    ii) Bilateral enlargement is caused by inflammation (mumps, Sjogren’s syndrome), granulomatous disease (sarcoidosis), or diffuse neoplastic involvement (leukemia or malignant lymphoma). 

The pharynx (pronounced "FAIR -inks") is a continuation of the rear of the mouth region, just anterior to the vertebral column (spine). It is a common passageway for both the respiratory and digestive systems.
The esophagus is a muscular, tubular structure extending from the pharynx, down through the neck and the thorax (chest), and to the stomach. During swallowing,
the esophagus serves as a passageway for the food from the pharynx to the stomach.

Sumber : Bpk. Dr. Iskandar Zulkarnain

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