Yes it is, there's also the radius
The ulna bone is located on the your pinky side of your arm, the radius bone is located on your thumb side of your arm. And the humerus is the bone located above your elbow. There are pics on google.
The ulna is important for the arm bone and supports the arm
There are two bones in the forearm, the radius and the ulna. The easiest way to remember which one is which is to extend your arm out palm facing vertically. When you look at your forearm your radius is the top bone and the Ulna is the lower bone.Or (as I did) remember it with this sentence: "The Ulna is Underneath."
The humerus, radius, and ulna are the bones of your arm. The humerus is the upper arm bone. In the forearm, the radius is the larger bone on the "thumb side," and the ulna is the smaller bone on the "pinkie" side.
The bone you are referring to is the ulna. It is one of the two bones in the forearm, located on the medial (little finger side) of the arm, next to the radius. The ulna plays a key role in stabilizing the arm and forming the elbow joint.
Ulna
The ulna is a bone in the lower arm of a human.
The Ulna is the common name for: Lower Arm Bone.
ulna bone
The ulna is a bone of the arm, and the tibia is a bone of the leg. They have no articulations.
in your arm
The elbow joint is located between the upper arm bone (humerus) in the lower arm bones (ulna and radius).