Salivary Glands Flashcards
salivary glands have what type of secretory portions?
compound tubuloacinar
minor salivary glands arise from?
ectoderm and endoerm- week 12
sublingual glands arises from
endoderm- wk 8
parotid gland arises from
ectoderm - wk 6
submandibular glands arise from
endoderm-week 6-7
parotid anlagen develops where?
near corners of stomodeum- develops from a groove like invagination of ectoderm in the crease between the maxillary and mandibular swellings
sublingual anlagen develops where?
develops from buds in the sulcus surrounding the sublingual folds on the floor of the mouth. Lateral to the submandibular primordia
submandibular anlagen develops where?
bilaterally from bud in the sulcus surrounding sublingal folds in the floor of the mouth.
-cords grow posterior and lateral to the tongue
myoepithelial cells arise from
neural crest cells
2 ways the parotid unique
- intragladular lymph nodes
2. epithelial buds grow, branch and extend around the facial nerve but parotid is not innervated by the facial nerve
in canalization, where to the lumens first appear?
proximal by the oral epithelium and the distal
when does the first cleft form?
stage 3-initiation of branching in the terminal parts of epithelial cord
what surrounds each acini?
myoepithelial cells?
in cytodifferentiation what 3 things can the terminal bulbs become?
acini, myoepithelial cells, duct cells
branching requires what for this to occur?
collagen type 3
