Yes, you can bend your elbow.
Your elbow is designed for flexion and extension, meaning it's built to bend and straighten. The elbow joint is where the humerus (upper arm bone) meets the radius and ulna (lower arm bones). This joint allows you to decrease the angle between your upper arm and forearm, effectively bending your elbow.
In summary, the human elbow joint allows for the bending and straightening of the arm.
