Arm Short horizontal strokes, as in E , F , L , T , or inclined upward as in Y , K . The stem of a lowercase letter projecting above the x-height . Ascenders and descenders are sometimes called extenders . Axis Formed by the thinning of the stroke in round letters of Roman origin. In oldstyle types the axis is inclined to the left, while in transitional and modern types it is vertical.
Exceptions occur due primarily to the vagaries of individual designers.
A circular form at the end of the arm in letters such as a , c , f , j , r and y . Ball terminals are found in many Romans and italics of the Romantic period, and in recent faces built on Romantic lines. The imaginary line supporting the bottom serifs of capitals and lowercase. Perpetua, Berling, Pontifex, Caiisto, Ignatius. The height of the face of the type, which in letterpress terms is the depth of the body of the type.