Salivary Glands:
- The minor and major salivary glands develop as buds of the oral ectoderm which secrete saliva.
- The minor salivary glands are widespread and are present under the mucosa of the lips, cheeks, palate, and tongue.
- The major salivary glands are paired organs, secreting serous (parotid) or mixed serous and mucous (submandibular and sublingual) saliva.
- 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).
PHARYNX
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.
ESOPHAGUS
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
#posting tugas cyberprenership
ahmad baihaqi
NIM 1112503964
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