Mod 7- Adolescence Flashcards
First Growth spurt
- cephalocaudal/proximodial patterns
- joint development
Second Growth Spurt
- muscle fibers
- heart and lung
- body fat levels
Puberty
the period of rapid growth and sexual development that begins somewhere from 8-14
10-11 for girls
11-12 for boys
Organizational role(hormonal changes)
priming the body to behave in a certain way
Activational role(hormonal changes)
triggering certain behavioral and physical changes
Adrenarche
the first puberty phase
increased production of adrenal androgens
- skeletal growth
Gonadarche
the second puberty phase
increased production of hormones governing physical and sexual maturation
Milestones of Puberty(5)
- pituitary gland signals adrenal gland
- androgen produced
3.pituitary hormones stimulate growth of ovaries or testes - testosterone and estrogen produced
5.other growth hormones produced
menarche
first menstruation;12-13
occurs so 4 years after the beginning of other visible signs of puberty
spermarche
the first boys ejaculation of sperm;13-14
Primary Sex characteristics(4)
sexual organs needed for reproduction
uterus, ovaries, testes, penis
Secondary Sex Characteristics(4)
physical signs of sexual maturation
development of breasts and hips
facial and public hair
increased muscle and bone mass
voice pitch changed
Sexual Behavior findings
boys are more sexually active than girls
the rate of teen sexual behavior has declined substantially over the last three decades
Male puberty sequence
growth of testes, public and facial hair growth, first ejaculation of seminal fluid, peak growth spurt deepening of the voice
Prefrontal cortex growth
involved in decision making and cognitive control
myelination and synaptic pruning increases
Amygdala
part of the limbic system which involved with emotions and emotional responses
dopamine
a neurotransmitter that plays a role in pleasure and the reward system
increases in the limbic system then the prefrontal cortex
frontal lobes
involved in impulse control, planning, and higher order thinking
limbic system
processing emotional experience, rewards and punishments
develops years before the prefrontal cortex
melatonin
sleep hormones that rise at night and lower in the morning
serotonin
a neurotransmitter in the brain regulating mood and behavior
“calming chemical”
characteristics of girls who are sexually active(4)
-early menarche
-low interest in school and school activities
-early dating
-history of sexual abuse
activities and moral beliefs that influence lower sexual activity amoung teens(4)
-believes premarital sex is wrong
-attends religious services
-participate in school activities
-doesn’t use alcohol
Anorexia nervosa
has the highest mortality rate
self-starvation, undereating and over exercising
binge-eating
the most common eating disorder
episodes of eating large quantities of food
body dissatisfaction
negative subject evaluation of the weight and shape of one’s own body
body image
a person’s idea of how their body looks
bulimia nervosa
binge eating and purging usually induced by vomiting and/or laxatives