Salivary Glands

salivary glands

glands that open or secrete into the oral cavity

mucous and serous secretion

two types of secretions

compound

a salivary gland has more than one tubule entering the main duct

tubuloacinar

describes the morphology of the secreting cells

merocrine

indicates that only the secretion of the cell is released

exocrine

describes a gland that secretes fluid onto a free surface

450 and 750

estimated number of minor salivary glands

serous glands of von Ebner

drains into the trench of the circumvallate papillae

palatoglossal glands

located in the region of the pharyngeal isthmus

palatal glands

lie in both soft and hard palate

anterior lingual glands

embedded within muscle near ventral surface of the tongue

posterior glands

located in the root of tongue

parotid gland

largest of salivary glands

25%

percentage of secretion while eating

10%

percentage of secretion while not eating

parotid capsule

parotid gland is enclosed within a well defined capsule

serous glands

acini of glands

stensen’s gland

excretory duct

submandibular gland/submaxillary gland

second largest of the salivary glands - mixed secretion that contributes 70% of saliva

sublingual caruncle

common excretion of sabmandi/maxi gland

sublingual gland

not a single unit of gland

posterior sublingual gland

greater sublingual gland

anterior sublingual gland

lesser sublingual gland

nodules

structural units of lymphoid tissue

spleen

largest lymphoid organ

palatine, lingual, pharyngeal tonsils

first 3 tonsillar groups

tubal tonsils

4th tonsil group

tonsils

characterised by depressions of the surface epithelium around aggregate lymph nodes

palatine tonsils

paired ovoid masses of lymphoid tissue that occupy the intervals between glossopalatine and pharyngopalatine arches - contains indentations or tonsillar crypts

lingual tonsils

consists of aggregation of wide mouthed epithelial pits each surrounded by lymphoid tissue

pharyngeal tonsil

accumulation of lymphoid tissue in the median posterior wall of the nasopharynx

tubal tonsils

sometimes considered a separate tonsillar group