What are joints and how do they work? - Worksheet

Joints are the points in our bodies where two or more bones meet, allowing for movement and flexibility. They are essential components of the skeletal system and are crucial for performing everyday actions such as walking, bending, and grasping objects. Joints are categorised by their structure and the type of movement they allow, ranging from freely movable synovial joints, such as the hips and knees, to partially movable or immovable joints like those found in the spine or skull. They work through a combination of bone articulations, cartilage, synovial fluid, ligaments, tendons, and muscles, which all come together to facilitate smooth and coordinated movements.

We need joints in our bodies to provide mobility and enable us to perform complex tasks. Without joints, our skeleton would be rigid, and we wouldn't be able to change the position of our limbs or other body parts. Joints also play a role in absorbing shock and helping to support the weight of the body during movement. Understanding joints and their functions is further enhanced by educational resources, such as internet links that provide visual explanations and detailed descriptions. The human skeleton, complemented by muscles, provides the framework that supports the body, protects internal organs, and, with the help of joints, enables movement. Muscles attach to bones via tendons and when they contract, they exert force on the bones, leading to movement at the joint. This intricate system showcases the remarkable mechanics of the human body.