What muscle is named for the arrangement of its fascicles?

The muscle named for the arrangement of its fascicles is the "pennate" muscle. In pennate muscles, the fascicles are arranged obliquely to the tendon, resembling a feather's structure. This arrangement allows for greater force production due to the increased number of muscle fibers that can fit into a given area, making pennate muscles efficient for generating power. Examples include the deltoid and the rectus femoris.