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Questions and Answers
Which type of glands release their secretory products by exocytosis?
Which type of glands secrete their products into a duct that opens to the surface of the covering or lining membrane?
Which glands are ductless and release their secretion directly into the surrounding interstitial fluid?
Which type of glands release their secretory products by budding off a portion of the cell?
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Which type of glands form their secretory products in the cytoplasm and then release the entire cell contents?
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Study Notes
Types of Glands and Their Secretions
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Exocrine Glands: Release secretory products by exocytosis, involving vesicle fusion with the plasma membrane to expel substances.
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Glands with Ducts: Secrete products into a duct, which opens to the surface of covering or lining membranes, facilitating direct delivery of substances (e.g., sweat glands, salivary glands).
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Endocrine Glands: Ductless glands that release their secretions directly into the surrounding interstitial fluid, allowing hormones to enter the bloodstream for systemic distribution (e.g., thyroid gland, adrenal glands).
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Apocrine Glands: Release secretory products by budding off a portion of the cell, which creates secretion while retaining the rest of the cell (e.g., mammary glands).
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Holocrine Glands: Form secretory products in the cytoplasm and release the entire cell contents upon cell lysis; when the cell dies, it releases its secretions (e.g., sebaceous glands).
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Description
Test your understanding of glandular epithelia classification in histology with this quiz. Learn about the site of product release, method of secretion, and relative number of cells forming the gland.
