Final answer:
Cells found within the matrix of dense irregular connective tissue include fibroblasts, which are the most abundant, and fibrocytes, a less active form of fibroblasts. These cells contribute to the network of collagen fibers that provide structure and resistance to multi-directional stress.
Step-by-step explanation:
Dense irregular connective tissue is a type of connective tissue proper that is reinforced by a mesh-like network of collagens fibers providing tensile strength, elasticity, and protection. Within the matrix of dense irregular connective tissue, several types of cells can be found. The most abundant cell type is the fibroblast, which is responsible for producing and maintaining the extracellular matrix. The less active form of fibroblast, known as the fibrocyte, is also present. These cells cooperate in forming the dense network of collagen that characterizes this type of tissue, which is essential for areas of the body where stress occurs in multiple directions, such as the dermis of the skin and the organ capsules.