In modern writing, there are simultaneous trends toward and away from capitalization. The trend in informal writing and much journalistic writing is away from it. Meanwhile, there is an unfortunate trend in business, corporate, and marketing writing to capitalize words for emphasis or to give words a little extra heft.
The deltoid muscle is a rounded, triangular muscle located on the uppermost part of the arm and the top of the shoulder.
Location of the origin and insertion. A muscle may be named for their attachment sites. For example, the brachioradialis attaches to the humerus (origin) and the radius (insertion). Many muscles are named according to their shape. For example, deltoid means triangular in shape.