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stroma
Thursday 29 August 2019
(from Greek στρῶμα, meaning ’layer, bed, bed covering’)
| WKP |
Definition : Stroma is the part of a tissue or organ with a structural or connective role. It is made up of all the parts without specific functions of the organ - for example, connective tissue, blood vessels, nerves, ducts, etc. The other part, the parenchyma, consists of the cells that perform the function of the tissue or organ.
There are multiple ways of classifying tissues: one classification scheme is based on tissue functions and another analyzes their cellular components.
Stromal tissue falls into the "functional" class that contributes to the body’s support and movement. The cells which make up stroma tissues serve as a matrix in which the other cells are embedded.
Stroma is made of various types of stromal cells.
Examples :
stroma of iris
stroma of cornea
stroma of ovary
stroma of thyroid gland
stroma of thymus
stroma of bone marrow
lymph node stromal cell
multipotent stromal cell (mesenchymal stem cell)
tumoral stroma
Pathology