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.
Several muscles surround the elbow, making it possible for you to move your arm. The two main muscles responsible for bending and straightening the arm at the elbow are: triceps, located at the back of the arm; biceps, located at the front of the arm; The main muscles of the elbow involved in wrist and finger movement are: flexors, which attach to the inside of the elbow and enable you to bend your wrists and fingers