SUBMANDIBULAR SALIVARY GLAND

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FEATURES
- Large salivary gland
Situation
- Anterior part of digastric triangle
Shape and size
- 15 to 20 grams , size of a walnut
- J shaped
Coverings
- Enclosed between two layers of deep cervical fascia
- Superficial layer covers
- Inferior surface of gland
- Attached to base of mandible
Parts
- Indented by posterior border of mylohyoid
  - Larger part superficial to muscle
  - Small part deep to muscle
- Superficial part
  - Surfaces
    - Inferior
      - Skin
      - Platysma
      - Cervical branch of facial nerve
      - Deep fascia
      - Facial vein
      - Submandibular lymph nodes
  - Lateral surface
    - Submandibular fossa on mandible
    - Insertion of medial pterygoid
    - Facial artery
  - Medial surface
    - From before backwards
      - Mylohyoid
      - Hyoglossus
      - Styloglossus
DEEP PART
- small in size
- Relations
  - Present in between mylohyoid and hyoglossus
  - Laterally – mylohyoid
  - Medially - hyoglossus
  - Above - lingual nerve with submandibular ganglion
  - Below - hypoglossal nerve
SUBMANDIBULAR duct or whartons duct
- Thin
- Emerges at anterior end of deep part of gland
  - Runs forward on hyoglossus between lingual and hyoglossus nerve
- Anterior border
  - Crossed by lingual nerve
- Opens
  - On floor of mouth
    - On summit of sublingual papilla
      - At side of frenulum of tongue
Blood supply
Nerve supply

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