Glandular Epithelium Flashcards
Composed of cells that are specialized to produce & secrete substances into ducts or into body fluids
Glands
Glands are classified based on:
- Number of Cells
- Absence or Presence of Ducts
- Manner of secretion
- Type of Secretion
- Type of Morphology
Two classification based on number of cells
- Multicellular
2. Unicellular
- Composed of a single cell (unicellular)
- Secretes Mucus
- Found in respiratory tract and intestines
Goblet Cells
Goblet Cells can be stained with?
- Periodic acid schiff
2. Alcian Blue
Function of goblet cells in the respiratory tract
Trap microorganisms from inhaled air
Function of goblet cells in intestines
Provide lubrication for digested food
Gland with absence of Duct
Endocrine
Gland with presence of duct
Exocrine
Secretes substances into the blood and glands are ductless
Endocrine
Secretes substances through ducts that open unto surfaces or lining epithelium
Exocrine
________ will eventually become the duct
Proximal part
__________ will eventually become the secretory portion
Distal part
3 manners of secretion
- Merocrine
- Apocrine
- Holocrine
Manner of secretion that releases water, protein-rich fluid by exocytosis
Merocrine
3 examples of Merocrine glands
- Salivary glands
- Sweat glands
- Pancreas
Gland that loses small portions of their cell body during secretion
Apocrine
Examples of Apocrine glands
- Mammary glands
2. Ceruminous glands
Glands where the entire cell lyses during secretion
Holocrine
Examples of holocrine glands
- Sebaceous glands of the skin
2. Meibomian glands of the eyelids
2 types of glandular secretion
Serous and Mucous
- Glandular secretion that produces enzyme or protein-rich fluid
- Digestion of nutrients
Serous
Glandular shape that is:
- club shaped
- serous
Acinar or Alveolar
Glandular shape that is:
- tube shaped
- mucous
Tubular
