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प्रश्न
Some epithelia are pseudostratified. What does this mean?
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उत्तर
Pseudostratified epithelial cells are columnar but unequal in size. Although the epithelium is single-layered yet it appears to be multilayered due to the fact that nuclei lie at different levels in different cells.
संबंधित प्रश्न
Fill in the blank
Epithelial tissue is made of cells without any ...................... spaces.
Write the name of the following tissue.
Tissue lining the inner surface of the mouth.
Name the tissues found
at the outer layer of skin.
The ciliated epithelium lines the______.
Prevention of substances from leaking across the tissue is provided by ______.
Nerve cell does not contain
Write true (T) or false (F)
Epithelial layer is permeable layer.
Give reasons for
Intercellular spaces are absent in sclerenchymatous tissues.
In a certain type of cell division, the diploid number of chromosomes is reduced to half. This kind of division occurs in ______.
An epithelial layer does not allow the regulation of materials between the body and the external environment.
Sieve cells have no companion cells.
Write the salient features of the compound epithelium.
Explain simple epithelium and its types.
Identify the following relationship
Cuboidal: Epithelial
Cardiac: ______
Granulocytes: ______
Osteocytes: ______
Identify the types of cell junctions that help to stop the leakage of the substances across tissue and facilitation of communication with neighbouring cells via rapid transfer of ions and molecules.
Which one of the following types of cell is involved in making of the inner walls of blood vessels?
Stratified epithelial cells have limited role in secretion. Justify their role in our skin.
Write the appropriate type of tissues in column B according to the functions mentioned in column A.
| Column A | Column B |
| a. Secretion and absorption | i. ______ |
| b. Protective covering | ii. ______ |
| c. Linking and supporting framework | iii. ______ |
