Complex sentence: The laryngeal prominence is usually more prominent in adult men than in women or prepubescent girls or boys.The growth of the larynx itself during puberty is responsible for the vocal instability in teenage boys.
Split into simpler sentences: The laryngeal prominence 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.