Pulaski County, AR is in the central part of Arkansas in the west south central United States: Closest City to the Center of Pulaski County, AR: Cammack Village, Arkansas: Cities in Pulaski County, AR:
Positioning the Body for Arm Curls. Mike Harrington / Getty Images. The arm curl or biceps curl is a highly recognizable weight training exercise that utilizes dumbbells or barbells, or even kettlebells, to work the muscles of the upper arm, the biceps, and to a lesser extent, the lower brachialis and brachioradialis.
Photo Credit shironosov/iStock/Getty Images. 1  Big guns need lots of ammo, and the biceps curl will give you all the ammo you need to blow away the competition at the beach or gym. There are more muscles involved in the biceps curl than you may have thought. When your brachialis, deltoid, extensors and flexors are engaged and working in unison, they can all contribute -- not just to a set of defined upper arms, but forearms and shoulders as well.