What is the primary role of stroma in an organ?

The primary role of stroma in an organ is to support and maintain the viability of that organ. Stroma consists of the connective tissues, blood vessels, and supporting cells that provide a structural framework for the organ. This supportive tissue helps to maintain the overall architecture, allowing the functional cells to operate effectively within their environment.

By providing a scaffold, the stroma facilitates the organization and arrangement of the specific functional cell types that perform the organ's designated tasks. Additionally, the stroma plays a vital role in supplying nutrients and oxygen through blood vessels while also offering a biochemical environment that supports cell differentiation and function. Therefore, its contribution is essential for both structural integrity and the overall health of the organ.

The other options refer to specific functions that may be associated with certain tissues but do not encompass the broader supporting role that the stroma provides across various organs.