ulna and radius
Radius and Ulna are the two bones in the forearm.
There are actually two bones in your forearm, the ulna and the radius.
Radius and ulna.
ulna and radius
The bones in the lower arm are the RADIUS and the ULNA.
ulna and radius
the ulna is one of two bones in your forearm
It's one of two forearm bones.
Another name for the forearm is the lower arm. The forearm consists of two bones, the radius and the ulna.
The two bones in the forearm allow it to turn better, so it is not necessary to turn the whole arm in oreder to slightly change the angle of the hand. There are three bones in the human arm (radius, ulna, humerus), so the question needs to be revised. If the question was supposed to be why having two bones in the FOREARM is better than one, then the answer is because having two bones is what allows the forearm to rotate. If there were only one bone in the forearm, then we would not be able to do so.
Two bones in the forearm are not necessary. However, to function normally, both the ulna and radius bones are required. Without the radius bone, the forearm could not be rotated, and without the ulna, the forearm would have little strength.
The ulna is the larger of two bones in the forearm. It's on the "pinky" side of the forearm. Thus it is a part of the skeletal system.