Which joint classification includes most of the joints in the human body?

The classification that includes most of the joints in the human body is synovial joints. These joints are characterized by a fluid-filled cavity, which allows for a wide range of motion. Synovial joints are the most mobile type of joint and enable various movements, such as bending, twisting, and rotation, which are essential for activities like running. They also possess structures such as cartilage, ligaments, and tendons that support stability and enhance mobility.

The abundance of synovial joints in the human body is a critical aspect of our biomechanical design, facilitating complex movements required during dynamic activities. Examples of synovial joints include the elbow, knee, and shoulder.

In contrast, fibrous and cartilaginous joints are either immovable or allow for limited movement, which does not accommodate the dynamic range needed for most athletic activities. Immovable joints refer specifically to those that offer no movement at all, such as the sutures in the skull. Thus, synovial joints stand out as the primary type facilitating the extensive movement needed in our daily activities and athletic pursuits.