DEVELOPMENTAL PSYCHOLOGY
SEXUAL DEVELOPMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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end of menstruation
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1st moon cycle
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male ejaculation
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1st menstrual period
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Detailed explanation-1: -Menarche is defined as the first menstrual period in a female adolescent. Menarche typically occurs between the ages of 10 and 16, with the average age of onset being 12.4 years.
Detailed explanation-2: -Most girls get their first period when they’re between 10 and 15 years old. The average age is 12, but every girl’s body has its own schedule.
Detailed explanation-3: -Early menarche is usually defined as menarche before the age of 12 years, although some researchers set it at ≤10 or 11 years. In Korea, 21.4% of subjects experienced menarche before the age of 12 years in 2001 versus 34.6% in 2010/2011 [4].
Detailed explanation-4: -Menarche defines the onset of menstruation, which is a normal physiologic process that occurs at regular monthly intervals. Menarche typically occurs around age 12 but a few years earlier or later is completely normal. Menarche happens during a time of physical and sexual maturation in adolescence known as puberty.