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chapter 11&12 h dev

puberty the biological stage of development characterized by changes that lead to reproductive capacity
feedback loop a system in which glands regulate each other's functioning through a series of hormonal messages
primary sex charcteristics the structures that make reproduction possible
secular trend a historical trend toward increasing adult height and earlier puberty
semen the fluid that contains sperm and substances that nourish and help transport sperm
nocturnal emission emission of seminal fluid while asleep
gynecomastia enlargement of breast tissue in males
menarche the onset of menstruation
osteoporosis a condition involving progressive loss of bone tissue
ethnic identity a sense of belonging to an ethnic group
clique a group of 5 to 10 individuals who hang around together and who share activities and confidences
crowd a large, loosely organized group of people who may or may not spend much time together and who are identified by the activities of the group
homosexual referring to an erotic orientation toward members of one's own gender
masturbation sexual self-stimulation
petting kissing and touching the breasts and genitals
Created by: kmason0315