ZOO 3000 Lecture Notes - Lecture 14: Insulin-Like Growth Factor 1, Ribonuclease, Microvillus

• School: University of Guelph
• Department: Zoology
• Course: ZOO 3000
• Professor: Fred Laberge

Document Summary

Lecture 14: digestive glands: variety of functions primarily aid in digestion. Salivary glands: numerous small and 3 pairs of larger ones, parotid, parotid glands are completely serous cells, submandibular (submaxillary) Submandibular glands are mixed with mostly serous cells: sublingual. Sublingual glands are mixed with mostly mucous cells. Salina components: water the principle component, proteins mucin, -amylase, lysozyme, iga, electrolytes capo4, k+, na+ and bicarbonate ions (hco3. Linked to a bunch of grapes with connective tissue dividing gland into lobules and lobes: basic secretory unit salivon, myoepithelial cells at base of acinus and intercalated duct move products toward excretory. Lobules composed of many acinus a blind-ended sac shaped like a berry ducts: acini contain serous cells (containing amylase and lysozyme granules) and mucous cells (contains mucinogen granules) or both, organization of salivon. Intercalated duct simple cuboidal epithelium: striated duct columnar epithelium with basal invaginations for reabsorption of water and na+, secretion of k+ and hco3, excretory duct (interlobular) stratified columnar epithelium.