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.
Besides elbow flexion, the biceps muscle is also involved in forearm supination -- turning your forearm so your palm faces up. It's more active in elbow flexion when your forearm is supinated and less active when your forearm is pronated -- your palm faces down.iceps Brachii. The biceps brachii, a two-headed muscle, sits on the front of your upper arm and is the most visible elbow flexor. It originates on the scapula, runs the length of your upper arm and attaches to the bones of the forearm, the ulna and radius.