Reticular connective tissue is a type of connective tissue[1] with a network of reticular fibers, made of type III collagen[2] (reticulum = net or network).
Reticular connective tissue is found around the kidney, liver, the spleen, and lymph nodes, Peyer's patches as well as in bone marrow.
[4] The fibers form a soft skeleton (stroma) to support the lymphoid organs (lymph node stromal cells, red bone marrow, and spleen).
It forms a labyrinth-like stroma (literally, "bed or "mattress"), or internal framework, that can support many free blood cells (largely lymphocytes) in lymph nodes, the spleen, and red bone marrow.
It forms the architectural framework of liver, adipose tissue, bone marrow, spleen and basement membrane, to name a few.