What is the he lower arm bone on the lateral of the arm?

1 Answer

To be pedantic, it depends on which way the arm is facing.

Explanation:

However, if we can assume that the arm is in the normal anatomical position, that is, when looking at the body from the front (anteriorly), the palms of the hands face forward. When this is the case, the bone that forms the lateral aspect of the forearm is the radius.