Like most countries in Europe, Summer (Daylight-Saving) Time is observed in UK Time, where the time is shifted forward by 1 hour; 1 hours ahead of Greenwich Mean Time (GMT+1). After the Summer months the time in UK Time is shifted back by 1 hour to Western European Time (WET) or (GMT).
The elbow joint has three different portions surrounded by a common joint capsule. These are joints between the three bones of the elbow, the humerus of the upper arm, and the radius and the ulna of the forearm.
How the Elbow Works. The elbow is made up of two forearm bones â the radius and ulna â that form a hinge joint to the upper arm (humerus). Its primary role is flexion and extension of the arm, so it is analogous to the knee joint.