Ulna
To read about other bones of the hands and arms, use the links on the left-side of this page.
The ulna is the inner and longer bone of the forearm, which is also referred to as the 'lower-arm'.
It articulates with the humerus and radius bones at the upper (strictly the 'proximal') end of the ulna, and with the radius at the lower ('distal') end of the ulna.
The location of the ulna is indicated in the diagram.
For more information about the adjacent bones see hand bones and arm bones.
More about Hand and Arm Bones:
This website includes many pages about bones and the skeletal system. The following pages may be of interest. These also link to further pages about related topics such as specific types of fractures, bone diseases and so on.
- Structures and Functions of Bones (an overview about the Skeletal System)
- Types of Bones, such as long bones, short bones, flat bones, etc.
- Bone Markings and Features on Bones of the Human Body
- Types of Joints, such as immoveable, slightly moveable and freely moveable joints
- Diagram of the Human Skeleton
- Overview of types of Conditions and Disorders of the Skeletal System
For further information see also our pages of books about orthopaedics.
