The Adam's apple is usually more prominent in adult men than in women or prepubescent girls or boys. Note that the growth of the larynx itself during puberty is responsible for the vocal instability in teenage boys, not the Adam's apple. The Adam's apple is merely the protrusion one sees of the thyroid cartilage making up the body of the larynx. Some suggest that the reason for the Adam's apple usually being more prominent in males is that the two laminae of the thyroid cartilage that form the protrusion meet at an angle of 90� in males but that angle is usually 120� in females. This theory, however, seems more like conjecture when in fact that with most women with large Adam's apples, they appear no different from those seen on men.