Role of Joints in Locomotion — NEET Biology

Which of the above statements accurately describe the structural features and functional implications of different joint types? S1: Fibrous joints are characterised by dense fibrous connective tissue binding the bones, forming immovable connections like the sutures of the cranium. S2: Cartilaginous joints, such as those between adjacent vertebrae, facilitate limited movements due to the bones being joined together by cartilages. S3: Synovial joints are distinctive for their fluid-filled synovial cavity between articulating surfaces, which allows considerable movement and assists in locomotion. S4: The synovial fluid within synovial joints, along with the articular cartilage covering bone ends, primarily serves to reduce friction and absorb shock, thereby ensuring smooth joint function. S5: All locomotory movements depend on the coordinated activity of muscular, skeletal, and neural systems, where joints act as fulcra to convert muscle-generated force into movement.