HDFS Exam 3 Questions with Correct Answers

When does puberty begin in most children? - ANSWER-between ages 8 and 14 What is puberty? - ANSWER--An onrush of hormones and full adult physical development. -Rapid physical growth and sexual maturation. -Entire body and brain are transformed. Sequence of puberty - ANSWER-Hypothalamus signals pituitary -> to send hormones to the adrenals -> to enlarge the gonads -> that produce a rush of sex hormones Observable changes in girls during puberty - ANSWER--Nipple growth and some body hair. -Increases in height while fat, especially at the breast and hips accumulates. -First menstrual period is followed by more growth. Observable changes in boys during puberty - ANSWER--Usually growth sequence is growth of the testes, overall body hair -Upper body muscular build -peak growth spurt, deepening of the voice When is growth complete after puberty starts for girls? - ANSWER--Body growth is complete by four years after it began -Brain growth completes by mid-20's When is growth complete after puberty starts for guys? - ANSWER--Final height is reached around age 20 pyschological effects of puberty - ANSWER--hormones instigate attraction and precipitate emotions -genes and earlier experiences interact with hormones -more moodiness and psychopathy at extremes -Boys: schizophrenia -girls: severe depression brain development throughout puberty - ANSWER--limbic system (fear, emotional impulses) matures before the prefrontal cortex (planning ahead, emotional regulation) -prefrontal cortex limited in connections and engagement and may be overwhelmed with impulses Body rhythms during puberty - ANSWER--day night cycle of biological activity occurs approximately every 24 hours