Blood in urine (haematuria) Introduction. Finding blood in your urine can be very frightening and must be investigated by a doctor, but it's not usually a sign of anything life-threatening. If you notice bright red blood in your urine, or if your urine has turned red or brown because it has blood in it, see your GP.
An inside look at the structure of the elbow. #. Advertisement. Advertisement. The elbow is where the two bones of the forearm â the radius on the thumb side of the arm and the ulna on the pinky finger side â meet the bone of the upper arm -- the humerus. The lower end of the humerus flares out into two rounded protrusions called epicondyles, where muscles attach.
The elbow joint is supported by the ulnar collateral ligament, radial collateral ligament and the annular ligament. These ligaments provide stability and strength to the elbow joint. The elbow joint also has the attachment of the common flexor and common extensor tendons. These groups of muscle assist in rotational movement of forearm as well as the movements of the wrist and hand.