While a direct list of five functions isn't explicitly in the provided reference about ellipsoid/condyloid joints, we can infer the function of synovial joints based on the movements they allow. Based on the reference, synovial joints function to allow movement, specifically flexion, extension, adduction, abduction, and circumduction. We can infer the following five functions of synovial joints:
Here are five key movements, and therefore functions, facilitated by synovial joints:
- Flexion: Bending a joint, decreasing the angle between bones.
- Extension: Straightening a joint, increasing the angle between bones.
- Adduction: Moving a body part towards the midline of the body.
- Abduction: Moving a body part away from the midline of the body.
- Circumduction: A circular movement of a limb or digit, combining flexion, extension, adduction, and abduction. The Ellipsoid/Condyloid joint, like the radius to carpal joint (wrist), enables this movement.
In summary, synovial joints allow for a range of movements that are vital for daily activities and physical performance, including flexion, extension, adduction, abduction, and circumduction.