PSY 3105 Lecture Notes - Lecture 2: Muscular Development, Thelarche, Pubic Hair

• School: University of Ottawa
• Department: Psychology
• Course: PSY 3105
• Professor: Shirley Griffith

Document Summary

Hormonal changes of puberty begin in the hypothalamus. Gnrh begins in middle childhood, at least a year or two before even the earliest bodily changes of. Stimulates and regulates the production of hormones by other glands puberty. This increase occurs once a threshold level of body fat is reached. Gnrh is named gonadotropin releasing hormone because that is what it does when it reaches the pituitary gland and causes hormones called gonadotropins to be released. Luteinizing hormone (lh) {these two stimulate the development of gametes} Two classes of sex hormones: estrogens & androgens. For pubertal development, the most important estrogen is estradiol and the most important androgen is testosterone. Androgens are produced not only by the sex glands but also by the adrenal glands. Adrenocorticotropic hormone (actch) causes adrenal glands to increase androgen production. Androgens released by the adrenal gland have the same effects as the androgens released by the testes (changes such as the development of increased body hair)