32 Questions
What are the boundaries of the submandibular region?
Inferior border of the mandible, anterior and posterior bellies of digastric
Which nerves are included in the contents of the submandibular region?
Hypoglossal nerve, mylohyoid nerve
Name the salivary glands located in the submandibular region.
Submandibular gland, sublingual salivary gland
What are the muscular components of the floor of the submandibular region?
Mylohyoid, hyoglossus, middle constrictor
What are the vascular components of the submandibular region?
Facial artery, lingual artery, facial vein
Which ligament is related to the submandibular region?
Stylohyoid ligament
What is the main contributor to the total salivary volume of the submandibular salivary gland?
Mixed salivary product (serous and mucous secretions)
Where does the submandibular duct open into the floor of the mouth?
At the sublingual caruncle (at the base of the lingual frenulum)
What anatomical relation does the lingual nerve have with the submandibular duct?
Lingual nerve loops under the submandibular duct, crossing first the lateral side and then the medial side of the duct
Where do the submandibular lymph nodes lie in relation to the submandibular gland?
Inferior border of the ramus of the mandible, superficial to the submandibular gland
Which artery supplies the face and submandibular gland and ascends crossing the inferior border of the mandible?
Facial artery
How is the submandibular salivary gland palpated during an extraoral examination?
Inferior and posterior to the body of the mandible
What does the lingual artery supply?
Tongue, floor of mouth, sublingual gland
Which nerve innervates most of the tongue muscles and exits the skull through the hypoglossal canal?
Hypoglossal nerve (XII)
What slender motor branch passes downward and anteriorly to supply the mylohyoid and the anterior belly of the digastric muscle?
Mylohyoid nerve
What nerve supplies the mylohyoid and the anterior belly of the digastric muscle and passes downward and anteriorly to the submandibular region?
Mylohyoid nerve
What are the muscular components that form the floor of the submandibular region?
Mylohyoid, Hyoglossus, Middle constrictor
Identify the nerves included in the contents of the submandibular region.
Hypoglossal nerve, Mylohyoid nerve
Name the ligament associated with the submandibular region.
Stylohyoid ligament
What is the main contributor to the total salivary volume of the submandibular salivary gland?
Submandibular gland
Where do the submandibular lymph nodes lie in relation to the submandibular gland?
Lie inferior to the submandibular gland
How is the submandibular salivary gland palpated during an extraoral examination?
By pressing the floor of the mouth
What is the main contributor to the total salivary volume of the submandibular salivary gland?
Mixed salivary product (serous and mucous secretions)
Where does the submandibular duct open into the floor of the mouth?
Sublingual caruncle (at the base of the lingual frenulum)
What anatomical relation does the lingual nerve have with the submandibular duct?
It loops under the submandibular duct, crossing first the lateral side and then the medial side of the duct
Which artery supplies the face and submandibular gland and ascends crossing the inferior border of the mandible?
Facial artery
What slender motor branch passes downward and anteriorly to supply the mylohyoid and the anterior belly of the digastric muscle?
Mylohyoid nerve
What nerve supplies the mylohyoid and the anterior belly of the digastric muscle and passes downward and anteriorly to the submandibular region?
Mylohyoid nerve
Where are the submandibular lymph nodes located in relation to the submandibular gland?
Inferior border of the ramus of the mandible, superficial to the submandibular gland
What is the anatomical course of the lingual artery?
It originates from ECA at the greater horn of hyoid, and passes deep to the hyoglossus
What are the contents of the deep lingual vein?
It joins the sublingual vein to drain into IJV
What is the innervation of most of the tongue muscles?
Hypoglossal nerve (XII)
Learn about the boundaries, contents, and connections of the submandibular region, submandibular ganglion, floor of the mouth anatomy, and submandibular and sublingual salivary glands.
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