Final answer:
Dense regular connective tissue contains mainly collagenous fibers arranged in parallel bundles, providing tensile strength and resistance to stretching. It is typically found in tendons and ligaments, which connect muscles to bones and bones to each other. Elastic fibers are also present, adding flexibility to certain ligaments.
Step-by-step explanation:
The type of fibers found within the matrix of dense regular connective tissue are mainly collagenous fibers. These fibers are packed into parallel bundles, which contribute to the tissue's high tensile strength and its ability to resist stretching in the direction of fiber orientation. Dense regular connective tissue is commonly found in structures such as tendons and ligaments, where the alignment of collagen fibers ensures the strength required for connecting muscles to bones and bones to each other, respectively.
In addition to collagen fibers, dense regular connective tissue may also contain elastic fibers. These are made of elastin and allow tissues to stretch and then return to their original shape. It is the presence of these elastic fibers that gives some ligaments, such as those in the vocal folds and between vertebrae, their flexibility and ability to return to their original length after stretching.