Lecture 23: Key topics in microanatomy of head and neck Flashcards
2 tissues that make up glands
parenchyma- epithelial cells
stroma- CT
endocrine gland
secretes hormones into the blood or lymphatics
exocrine gland
secretes into ducts
saliva
combination of mucous and serous products of salivary glands, dissolves water soluble food, essential for deliver to taste buds and lubricates upper digestive tract
major salivary glands
parotid, mandibular, sublingual
what cranial nerve innervates the parotid gland
CN IX glossopharyngeal
what cranial nerve innervates the mandibular nerve
CN VII facial
what are the extramural glands of digestion
salivary, pancreas and liver
how do extramural glands protect the body
secreting antibacterial agents, lysozyme, lactoferrin and IgA
what are the major salivary glands
parotid, mandibular, and sublingual
what kind of fluid does the parotid gland contain
serous
what kind of fluid does the mandibular and sublingual contain
mixed serous and mucous
what are mucous acini associated with
serous demilunes
what are serous demilunes
release proteins containing lysozyme enzyme-> degrades bacterial cell walls
where do the visceral motor axons to the parotid gland synapse
otic
where do the visceral motor axons synapse traveling to submandibular and sublingual glands
submandibular and lingual ganglia
what cell type makes up the palate
stratified squamous with prominent lamina propria
where do the visceral motor axons synapse that are traveling to lacrimal gland
pterygopalatine
what does the thyroid gland release and regulate
releases hormones that regulate metabolism
what gland is important in regulating HR, body temperature, and muscle function
thyroid gland
is the thyroid gland an endocrine or exocrine gland
endocrine
what is the gland parenchyma of thyroid gland made of
colloid filled follicles
what is colloid composed of
thyroglobulin- temporary storage of main thyroid hormones
what cell type are follicular cells in thyroid
simple columnar
