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Questions and Answers
What is the characteristic feature of Holocrine secretion?
What is the characteristic feature of Holocrine secretion?
- The secretory product is released without the destruction of the secretory cell
- The apical part of cytoplasm of the cells is lost together with the secretory product
- The entire secretory cell and its product are discharged (correct)
- The secretory cells secrete their product through the basal cell membrane
Which type of endocrine gland is characterized by the cells forming spherical structures?
Which type of endocrine gland is characterized by the cells forming spherical structures?
- Trabecular type
- Disseminated type
- Acinar or alveolar type
- Follicular type (correct)
What is the distinguishing feature of a Compound gland?
What is the distinguishing feature of a Compound gland?
- The ducts are not branched
- The secretory portion is flask-shaped with a narrow central lumen
- The secretory portion is tubular in shape
- The ducts have a branching duct system (correct)
In which type of endocrine gland are the endocrine cells placed in groups or separately in another organ?
In which type of endocrine gland are the endocrine cells placed in groups or separately in another organ?
Which type of secretion is characteristic of the female mammary gland?
Which type of secretion is characteristic of the female mammary gland?
What is the distinguishing feature of a Tubuloacinar gland?
What is the distinguishing feature of a Tubuloacinar gland?
Which of the following is NOT a characteristic of glandular epithelium?
Which of the following is NOT a characteristic of glandular epithelium?
What is the primary difference between exocrine and endocrine glands?
What is the primary difference between exocrine and endocrine glands?
Which of the following is NOT a component of the structure of exocrine glands?
Which of the following is NOT a component of the structure of exocrine glands?
What is the mechanism of merocrine/eccrine secretion?
What is the mechanism of merocrine/eccrine secretion?
Which of the following glands is an example of a merocrine/eccrine gland?
Which of the following glands is an example of a merocrine/eccrine gland?
In which type of secretion does the entire cell disintegrate to release the secretory product?
In which type of secretion does the entire cell disintegrate to release the secretory product?
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Study Notes
Holocrine Secretion
- Characterized by the entire cell disintegrating to release the secretory product.
Endocrine Glands with Spherical Structures
- Cells form spherical structures called follicles, typical of thyroid glands.
Compound Glands
- Distinguished by having branched duct systems.
Distribution of Endocrine Cells
- Endocrine cells are grouped or located separately in another organ, such as the pancreatic islets.
Female Mammary Gland Secretion
- Characteristic secretion type is lactation, which involves holocrine and apocrine mechanisms.
Tubuloacinar Gland Features
- Possesses both tubular and acinar (alveolar) components in its structure.
Glandular Epithelium Characteristics
- NOT characterized by a lack of blood supply; they are often well-vascularized.
Exocrine vs. Endocrine Glands
- Primary difference: exocrine glands secrete into ducts, while endocrine glands release hormones directly into the bloodstream.
Structure of Exocrine Glands
- NOT composed of endocrine cells only; they include ducts and secretory units.
Mechanism of Merocrine/Eccrine Secretion
- Involves the release of secretions via exocytosis without cellular damage.
Example of a Merocrine/Eccrine Gland
- Salivary glands serve as a common example of merocrine glands.
Characteristics of Secretory Mechanisms
- Holocrine secretion features complete cell disintegration for secretory release.
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