of collagenous fibers, cartilage is an example of connective tissue. ??? ??? ??? Bones are held together at joints by ligaments. ??? ??? ??? A matrix of connective tissue is apparent in actin and myosin of muscle. ??? ??? ??? The nucleus of a typical nerve cell is found in the cell body. ??? ??? ??? All types of muscle tissue have interactions between actin and myosin. ??? ??? ??? All skeletal mus