Exam 14: Seciton 4: Adolescence: Biosocial Development

Emotional control is fully developed by adolescence.

It is typical for children to begin seeing pubertal changes in their bodies between ages 8 and 14.

Some of the problems associated with teenage pregnancy, including malnourishment and postponed prenatal care, depend mostly on the SES of the expectant mother.

Studies suggest that genes influence the timing of puberty.

Secondary sex characteristics signify masculinity and femininity.

Both boys and girls produce androgens and estrogens.

The changes of puberty are initiated by a part of the brain called the hypothalamus.

In the United States, STIs are over-represented among 15- to 25-year-olds even though this age group is under-represented among all the sexually active adults.

Deepening of the voice is among the last signs of pubertal changes in males.

Precocious puberty is sexual development before the age of 6.

It appears that the timing of menarche is related to the accumulation of a certain amount of body fat, which is why heavy girls generally menstruate earlier than other girls do.

During the past several decades, the so-called "double standard"-that boys are expected to be sexually active while girls are not-has narrowed in every ethnic group.

Boys may experience some breast swelling during puberty.

In adolescence, growth proceeds in a proximodistal pattern.

The prefrontal cortex is where planning ahead and emotional regulation occur.

During adolescence, the heart doubles in size, the pulse rate decreases, and blood pressure increases.

Late-maturing girls tend to have a worse body image than their early-maturing peers do.

Hormonal increases directly lead to interest in sex.

Secondary sex characteristics involve reproductive organs such as the uterus and testes.

Menarche does not usually occur until a girl weighs 100 pounds.