Anatomy - Submandibular And Submental Triangles

Front 1

what forms the submental triangle?

Back 1

anterior belly of digastric muscle on each side, hyoid bone as its base, mylohyoid muscle as its floor

Front 2

what does the submental triangle contain?

Back 2

only small veins and lymph nodes

Front 3

what forms the submandibular triangle?

Back 3

anterior belly of digastric muscle, laterally by body of mandible, posteriorly by posterior belly of digastric muscle and stylohyoid muscle

Front 4

what does the submandibular triangle contain?

Back 4

submandibular salivary glands, submandibular lymph nodes, hypoglossal nerve (CN XII), nerve to the mylohyoid muscle, parts of the facial artery and vein

Front 5

what does the mylohyoid nerve innervate?

Back 5

mylohyoid muscle and anterior belly of digastric muscle

Front 6

where does the mylohyoid nerve come from?

Back 6

mandibular branch (V3) of the Trigeminal Nerve

Front 7

what cranial nerve is the Trigeminal Nerve?

Back 7

CN V

Front 8

origin of stylohyoid muscle?

Back 8

styloid process of skull

Front 9

origin of posterior belly of digastric muscle

Back 9

mastoid process of skull

Front 10

which is posterior: mastoid or styloid process?

Back 10

mastoid process

Front 11

which is posterior: stylohyoid muscle or posterior belly of digastric muscle?

Back 11

posterior belly of digastric muscle

Front 12

location of hypoglossal nerve

Back 12

swoops down in a curve around occipital artery, disappears deep to mylohyoid muscle on its way to tongue, should see C1 nerve to thyrohyoid coming off it

Front 13

location of lingual artery

Back 13

branches from external carotid, disappears deep to hypoglossus muscle of tongue