Adolescence Flashcards
adolescence years
12-20 yrs
adolescence begins with…
onset of puberty
adolescence ends with…
cessation of body growth at 18-20 yrs
adolescent growth spurt
20-25% of height is achieved
occurs over 24-36 months
girl growth spurt
stop growing about 2 yrs after menarche
grow 2-8inches and gain 1.5-55lbs
boy growth spurt
stop growing at 18-20yrs
grow 4-12 inches and gain 15.5-66lbs
female sexual maturation order
- breast development (thelarche)
- pubic hair growth (adrenarche)
- axillary hair growth
- menstruation (menarche)
male sexual maturation order
- testicular enlargement
- pubic hair growth
- penile enlargement
- growth of axillary hair
- facial hair growth
- vocal changes
puberty and hormones
- hypothalamus stimulates anterior pituitary
- anterior pituitary releases FH and LSH
- LH and FSH stimulate the gonads (ovaries and testes)
- ovaries release estrogen, testes release testosterone
- estrogen= female secondary sex, testosterone= male secondary sex
“master gland”
pituitary gland
anterior pituitary stimulation..
LH and FSH
growth hormone (leads to bone growth and therefore physical growth)
sexual maturation red flags
- no breast development by age 13 in girls
- no scrotal or testicular changes by age 14 in boys
estrogen
causes female secondary sex characteristics and regulates ovulation
feminizing hormone
gynecomastia- breast tissue enlargement in men when too much estrogen
adolescence cognitive stage
formal operations, abstract thinking
use logic
adolescence psychosocial stage
identity vs role confusion
peers are most important
group identity
separation from parents
thrive on independence
rebellion
