Epithelia and gland tissue
29 important questions on Epithelia and gland tissue
In a few words, how can you describe epithelial tissue?
Where in the body can epithelial tissue be found?
- Body cavities and respiratory and digestive systems;
- Layers in blood vessels;
- Layers of some organs.
Which two kinds of epithelium could you identify, seen the place in the body?
- Glandular epithelium (the glands of the body).
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Which two surfaces does an epithelial cell have?
- The basal surface (attached to connective tissue and the rest of the organism).
How can the apical surface of an epithelial cell be lined?
- or it can be lined with microvilli.
What is the function of microvilli on the apical surface of an epithelial cell?
Based on which 3 categories is epithelial tissue classified?
2. Morphology, the shape of the cells
3. Cell organization, number of cell layers (strata)
Which 3 types of cell shapes are there?
2. Cuboidal
3. Columnar
What does transitional mean for a cell shape?
What are 4 characteristics of the Epithelia?
2. Polarized (apical and baso-lateral)
3. Surface specializations
4. Presence of a basal membrane
Which 2 parts are in the apical domain?
2. Cilia, movement and sensory function
Which 7 intercellular connections are there?
2. Adhesion belt
3. Gap junctions
4. Desmosomes
5. Hemidesmosomes
6. Basal domain
What are the 2 functions of tight junctions?
2. Membrane proteins of both cells are compartmentalized to keep them separated
What kind of intercellular connection is this?
Where is an adhesion belt made by?
Name the state in both intra- and intercellular adhesion belts?
Intracellular: connected with actin
Which intercellular connection is this?
What are the transmembrane proteins in gap junctions?
Which intercellular connection is this?
Which intercellular connection is the strongest?
How are desmosomes connected intracellular?
What are the transmembrane-linker proteins of the Hemidesmosomes?
What 2 parts of the cell do integrins connect in hemidesmosomes?
What is often present with gland tissue?
Gland tissues consist of which 2 parts?
2. Stroma (connective tissue)
Through which 2 glands is the secretion of gland tissues executed?
2. Endocrine glands, release of hormones directly to the lumen, blood or lymph
Which 3 methods of secretion are there and where do they happen?
2. Apocrine, mammary gland
3. Holocrine, hair follicle by the mammary gland
What are the 3 primary components in the secretion process of the protein-producing gland?
2. Rough endoplasmic reticulum
3. The Golgi apparatus
Is there storage of steriod in the cell?
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