FRHD 1010 Chapter Notes - Chapter 9: Pubic Hair, Spermarche, Menarche

• School: University of Guelph
• Department: Family Relations and Human Development
• Course: FRHD 1010
• Professor: Susan Chuang

Document Summary

Puberty: the time between the 1st onrush of hormones & full adult physical development. Average age of spermarche is just under 13 years. Unseen beginnings: entire puberty process begins w/ invisible event, hormonal increase. Hormones: an organic chemical substance that"s produced by 1 body tissue & conveyed via the bloodstream to another to affect some physiological function. Pituitary: a gland in the brain that responds to a signal from the hypothalamus by producing many hormones, including those that regulate growth & that control other glands among them the adrenal & sex glands. Adrenal glands: 2 glands, located above the kidneys, that produce hormones (including stress hormones & norepinephrine) Hpa(hypothalamus-pituitary-adrenal) axis: a sequence of hormone production that originates in the hypothalamus, moves to pituitary and then adrenal. Hpg(hypothalamus-pituitary-gonad) axis: a sequence of hormone production that originates in hypothalamus, moves to pituitary and then to gonads.