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Transitional Epithelium - 🧠 ANSWER ✔✔Consists of many layers
Consists of a combination of cuboidal and "oddly" shaped cells
Location
Urinary bladder, renal pelvis, and ureters
Function
Ability to stretch extensively
Glandular Epithelia - 🧠 ANSWER ✔✔Most or all of the epithelial cells
produce secretions
How glands are classified - 🧠 ANSWER ✔✔Type of secretion release
Structure of the gland
Mode of secretion
Types of glands - 🧠 ANSWER ✔✔Endocrine & Exocrine
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,Exocrine Glands - 🧠 ANSWER ✔✔Secretions travel through ducts to the
epithelial surface
(hormones leave)
*glands that have tubes that lead from the gland out to an epithelial surface
(ducts)
Endocrine Glands - 🧠 ANSWER ✔✔Secretions enter into the blood
Secretions are called hormones
(no ducts)
Exocrine gland categories - 🧠 ANSWER ✔✔Serous glands
Mucous glands
Mixed exocrine glands
Serous glands - 🧠 ANSWER ✔✔secrete watery fluids rich in enzymes
Mucous glands - 🧠 ANSWER ✔✔secrete glycoproteins (mucins) that
absorb water to produce mucus
Thicker sticky
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,Mixed exocrine glands - 🧠 ANSWER ✔✔contain both serous and mucous
secretions
Gland structure - 🧠 ANSWER ✔✔unicellular or multicellular
Unicellular glands - 🧠 ANSWER ✔✔Secrete mucins
Two types: goblet cells and mucous cells
Two types of unicellular glands - 🧠 ANSWER ✔✔Goblet cells
Mucous cells
Goblet cells - 🧠 ANSWER ✔✔Found among columnar epithelium of small
and large intestines
Made in the ER, packaged in golgi, produced mucin
Mucous cells - 🧠 ANSWER ✔✔Found among pseudostratified ciliated
columnar epithelium of the trachea
Mulitcellular glands - 🧠 ANSWER ✔✔Secrete serous and/or mucous
secretions
Produces secretory sheets
*Most glands are these
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, Multicellular can: - 🧠 ANSWER ✔✔(DELETE ME)
Produce exocrine secretions
(Consists of a portion that produces the secretion
Consists of a portion that carries the secretion to the epithelial surface)
Produce endocrine secretions
Mechanisms of Secretion - 🧠 ANSWER ✔✔Merocrine
Apocrine
Holocrine
Merocrine secretion - 🧠 ANSWER ✔✔Exocytosis
Found in salivary glands
delivering, releasing out the top. most common
Apocrine secretion - 🧠 ANSWER ✔✔Shedding of the apical portion of the
cell
Found in mammary glands
make substances, the entire top of the cell breaks off and becomes part of
the secretion. Breast milk example
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