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ENDOCRINE GLANDS
UNICELLULAR GLANDS
• goblet cell sprinkled in epithelial linings of intestinal and and respiratory tracts
• produce mucin, a complex glycoprotein that dissolves in water once secreted
• forms mucus once dissolved
What are GLANDS? What's the difference?
EXOCRINE GLANDS
MULTICELLULAR GLANDS
• eventually lose ducts
• produce hormones
• structurally diverse
• secretions are varied
• far more numerous than endocrine
• all secrete products on to body surfaces or in to body cavities
• include mucous, sweat, oil, salivary, liver, and pancreas
• structurally complex
• to parts: duct and secretory unit
• simple: unbranched duct
• compound: branched duct
• different modes of secretion
Glands are made of one or more cells that make and secrete a particular product, which is called a secretion.
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