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30 Cards in this Set

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Glandular Epithelia:
Types of Secretion -
Exocrine - define this
When secretions are discharged onto the surface of the skin or onto epi surface lining in internal passageways that comm. with the exterior
-exocrine cells form pockets connected to epi surface by tubes, called ducts
Glandular Epithelia:
Types of Secretion -
Exocrine
Categorization: Serous gland
Secrete a watery solution that contains enzymes like salivary amylase in saliva
Glandular Epithelia:
Types of Secretion -
Exocrine
Categorization: Mucous gland
Secrete glycoproteins called mucins that absorb water to form a slippery mucus, like mucus in saliva.
Glandular Epithelia:
Types of Secretion -
Exocrine
Categorization: Mixed Exocrine Gland
Contain more that one type of gland cell and may produce different secretions, ex. submandibular gland
Glandular Epithelia:
Types of Secretion -
Endocrine - define this
When hormones are released by exocytosis from the gland cells into the fluid surrounding the cell and diffuse into the blood for dist.
Glandular Epithelia:
Types of Secretion -
Endocrine - define this
May be part of the epi surface like in the lining of the digestive tract or they may be sep. as in the pancreas, but no ducts are ever present
Glandular Epithelia:
Gland Structure -
Unicellular glands
Where epithelia contain scattered gland cells, the individual secretory cells are unicellular
Glandular Epithelia:
Gland Structure -
Multicellular glands
Include glandular epithelia and aggregations of gland cells that produce exocrine secretions; found in pockets set back from the epi surface, have 2 components: glandular and duct portions
Glandular Epithelia:
Gland Structure -
Unicellular glands type:
Goblet cells (Exocrine)
Secrete mucins that form mucus; they are scattered among epi cells, ex: in the columnar epithelium of the intestines
Glandular Epithelia:
Gland Structure -
Multicellular glands type:
Secretory Sheet (exocrine)
Glandular cels dominate the epi and release secretions to an inner compartment;
Glandular Epithelia:
Gland Structure -
Multicellular gland organization: Gland shape
-Tubular: cells arrang. in tube
-Alveolar/Acinar: cells arrang. in blind pockets
-can have como of two, then put names together
Glandular Epithelia:
Gland Structure -
Multicellular gland organization: Duct pattern
-Simple: if the duct doesn't branch
-Compound: if it branches repeatedly, most likely used by several glands
Glandular Epithelia:
Modes of Secretion -
Merocrine Secretion
Where the secretory product is released through the exocytosis, most common mode of secretion; globlet cells release mucus via the merocrine secretion
Glandular Epithelia:
Modes of Secretion -
Apocrine Secretion
When the apical portion of the cytoplasm becomes packed with secretory vesicles before its shed; occurs in milk production
Glandular Epithelia:
Modes of Secretion-
In both merocrine and apocrine secretion, does the nucleus and golgi apparatus stay intact?
Yes, so the cell can still perform reparis and contnue to secrete.
Glandular Epithelia:
Types of Secretion -
Exocrine - define this
When secretions are discharged onto the surface of the skin or onto epi surface lining in internal passageways that comm. with the exterior
-exocrine cells form pockets connected to epi surface by tubes, called ducts
Glandular Epithelia:
Types of Secretion -
Exocrine
Categorization: Serous gland
Secrete a watery solution that contains enzymes like salivary amylase in saliva
Glandular Epithelia:
Types of Secretion -
Exocrine
Categorization: Mucous gland
Secrete glycoproteins called mucins that absorb water to form a slippery mucus, like mucus in saliva.
Glandular Epithelia:
Types of Secretion -
Exocrine
Categorization: Mixed Exocrine Gland
Contain more that one type of gland cell and may produce different secretions, ex. submandibular gland
Glandular Epithelia:
Types of Secretion -
Endocrine - define this
When hormones are released by exocytosis from the gland cells into the fluid surrounding the cell and diffuse into the blood for dist.
Glandular Epithelia:
Types of Secretion -
Endocrine - define this
May be part of the epi surface like in the lining of the digestive tract or they may be sep. as in the pancreas, but no ducts are ever present
Glandular Epithelia:
Gland Structure -
Unicellular glands
Where epithelia contain scattered gland cells, the individual secretory cells are unicellular
Glandular Epithelia:
Gland Structure -
Multicellular glands
Include glandular epithelia and aggregations of gland cells that produce exocrine secretions; found in pockets set back from the epi surface, have 2 components: glandular and duct portions
Glandular Epithelia:
Gland Structure -
Unicellular glands type:
Goblet cells (Exocrine)
Secrete mucins that form mucus; they are scattered among epi cells, ex: in the columnar epithelium of the intestines
Glandular Epithelia:
Gland Structure -
Multicellular glands type:
Secretory Sheet (exocrine)
Glandular cels dominate the epi and release secretions to an inner compartment;
Glandular Epithelia:
Gland Structure -
Multicellular gland organization: Gland shape
-Tubular: cells arrang. in tube
-Alveolar/Acinar: cells arrang. in blind pockets
-can have como of two, then put names together
Glandular Epithelia:
Gland Structure -
Multicellular gland organization: Duct pattern
-Simple: if the duct doesn't branch
-Compound: if it branches repeatedly, most likely used by several glands
Glandular Epithelia:
Modes of Secretion -
Merocrine Secretion
Where the secretory product is released through the exocytosis, most common mode of secretion; globlet cells release mucus via the merocrine secretion
Glandular Epithelia:
Modes of Secretion -
Apocrine Secretion
When the apical portion of the cytoplasm becomes packed with secretory vesicles before its shed; occurs in milk production
Glandular Epithelia:
Modes of Secretion-
In both merocrine and apocrine secretion, does the nucleus and golgi apparatus stay intact?
Yes, so the cell can still perform reparis and contnue to secrete.