Glands Flashcards
what are the functions of the salivary glands
lubrication of food for swallowing, moistening the buccal mucosa to assist speech, provision of enzymes to facilitate taste and digestion, secretion of metabolic hormones
what is the parotid gland bordered by
SCM, zygomatic arch and masseter muscle
what is the function of the parotid duct
secretes saliva into mouth opposite second upper molar crown
what does the parotid duct pierce
the buccinator muscle
where is the parotid gland
retromandibular fossa
which vein and artery pass through the parotid gland
external carotid artery and retromandibular vein
what innervates the parotid gland
glossopharyngeal nerve
what type of gland is the parotid
endocrine serous
what type of gland is the submandibular
seromucous
what is the function of the submandibular gland
Produces serous (amylase, digestion) and mucous saliva (mucin, lubricant), which moistens the mouth and aids in chewing, swallowing, digestion, and oral cleanliness.
Unstimulated, the submandibular glands provide the majority of saliva to the mouth.
On stimulation, the parotid gland takes over, producing the majority of saliva.
where does the submandibular duct open
in oral cavity at the sublingual caruncle beside the frenulum of tongue
what supplies the submandibular gland
facil and lingual arteries
describe the lymphatics of the thyroid gland
thyroid lymphatic vessels communicate with tracheal plexus and pass to the prelaryngeal nodes (above thyroid isthmus) and to the pretracheal and paratracheal nodes.
Some vessels may drain into the brachiocephalic nodes and laterally the gland drains into the deep cervical nodes.
where is parasympathetic secretomotor innervation from
the chorda tympani nerve, branch of facial nerve via the submandibular ganglion
what type of gland is the sublingual
mucous
where do the superior, middle and inferior thyroid veins drain into
internal juguar vein
what arteries supply the sublingual gland
branch of lingual artery and submental branch of facial artery
what is the sublingual gland innervated by
lingual nerve, chorda tympani and sympathetic fibres
where is parasympathetic innervation relay for the submandibular gland
submandibular ganglion
what type of gland is the thyroid
endrocrine
what is the centre of the thyroid called
isthmus
what arteries supply the thyroid
superior and inferior thyroid arteries and sometimes the arteria thyroidea ima
what is the thyroid gland innervated by
superior, middle and inferior cervical sympathetic ganglia
what is the function of the parathyroids
calcium regulation
what arteries supply the parathyroids
inferior thyroid arteries
what innervates the parathyroids
the superior or middle cervical ganglion, or via a plexus in the fascia on the posterior lobar aspects.
what vertrebral level is the isthmus on
2nd, 3rd, 4th
where does the parotid gland open
vestibule of mouth opposite second maxillary molar tooth
