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.
Elbow joint. The elbow joint consists of three bones: the humerus, the ulna, and the radius. These bones create three articulations â the ulnohumeral, the radiohumeral, and the proximal radioulnar â that provide flexion, extension, and forearm rotation. The brachialis is the chief flexor of the elbow. 2  Its proximal attachment is on the distal half of the anterior humerus, extending distally to the coronoid process and tuberosity of the ulna. 3  The biceps brachii consists of a short head and long head.