Forearm Forearm The forearm is the region of the upper limb between the elbow and the wrist. The term forearm is used in anatomy to distinguish it from the arm, a word which is most often used to describe the entire appendage of the upper limb, but which in anatomy, technically, means only the region of the upper arm, whereas the lower "arm" is called the forearm. It is homologous to the region of the leg that lies between the knee and the ankle joints, the crus. The forearm contains two long bones, the radius and the ulna, forming the radioulnar
Forearm (comics) Forearm (comics) Forearm (Michael McCain) is a fictional mutant villain appearing in American comic books published by Marvel Comics. As a member of the Mutant Liberation Front, Forearm has always been a mainstay on the terrorist group's roster, even staying through leader changes and incarceration. Forearm has a minor cameo appearance (nothing but his two right arms are seen, and only in one panel) as a member of the Mutant Liberation Front in "New Mutants" #86, as Rob Liefeld took over as the penciller of the series. This was immediately followed by his first full appearance in "New Mutants" #87.