What Is The Term For The Onset Of Menstruation Quizlet?

What Is The Term For The Onset Of Menstruation Quizlet? menarche. is the onset of menstruation and usually begins around 12.5 years of age, and then continues until menopause (~51 years of age) 28 days. What is the term for the onset of menstruation? Your first menstrual period is called menarche (say “MEN-ar-kee”). It usually