What Is the Parotid Duct?
The parotid gland is slightly triangular in shape, located in front of the auricle, between the mandibular branch and the sternocleidomastoid muscle. The parotid duct protrudes from the front edge of the parotid gland, crosses the masseter muscle surface at a transverse finger below the zygomatic arch, turns inward at a right angle at the front edge of the masseter muscle, passes through the cheek, and opens at the buccal mucosa that flatly faces the second maxillary molar .
Parotid duct
discuss
- Chinese name
- Parotid duct
- Foreign name
- unknown
- Including
- Parotid nipples
- Belongs to
- biological
- The parotid gland is slightly triangular in shape, located in front of the auricle, between the mandibular branch and the sternocleidomastoid muscle. The parotid duct protrudes from the front edge of the parotid gland, crosses the masseter muscle surface at a transverse finger below the zygomatic arch, turns inward at a right angle at the front edge of the masseter muscle, passes through the cheek, and opens at the buccal mucosa that flatly faces the second maxillary molar .
- Emitted from the superficial anterior edge of the parotid gland, one finger below the flattened arch, forward over the front of the masseter muscle, turning to the right at an almost right angle to the front edge of the masseter muscle, passing through the buccal muscle, opening into the oral vestibule, just to the upper jaw The buccal mucosa of the second molar. The mucosa at the opening is swollen, called a parotid papilla. You can feel it by touching the tip of your tongue in a living body.
- The parotid duct emanates from the superficial anterior edge of the parotid gland, and the parotid sheath is pierced at about 1.5 cm (one horizontal finger) at the lower edge of the zygomatic arch.
It is basically parallel to the zygomatic arch, and passes through the buccal muscles at an almost right angle at the anterior edge of the masseter muscle. It travels forward between the buccal muscles and the mucosa at an angle of about 45 °, and finally opens on the crown and buccal surface of the second molar On the buccal mucosa, the mucosa at the opening is slightly raised, which is called the parotid papilla. You can feel yourself by touching the tip of the tongue in a living body.
- During oral examination, you can see that clear saliva overflows from the opening of the parotid duct when the parotid gland is squeezed. When the parotid gland is inflamed, the parotid duct mouth often shows redness and swelling, and inflammatory secretions overflow often when squeezed. Entrance to the parotid flush,
- Body surface projection:
The midpoint between the nose and the corner of the mouth goes up and back to the middle of the line connecting the earlobe
- During the operation, 2ml of 1% methylene blue solution can be injected from the mouth of the parotid gland to make the parotid tissue blue, so that the color of the glandular tissue is different from that of the facial nerve and surrounding tissues.
- Plastic tubes can also be introduced through the mouth of the parotid gland in order to find the parotid gland.