Work Step by Step
Option a. is incorrect. Fibrous joints such as the cranial sutures do not move. Option b. is incorrect. Cartilaginous joints connect to cartilage such as the costal cartilage of the ribs. These joints are only slightly movable. Option d. is incorrect. Tendons are not joints; they are tissues that connect muscle to bone. Option c. is correct. Synovial joints move freely. They include ball-and-socket joints such as those of the hips and shoulders and hinge joints such as that of the elbow.