Psychology 2075 Chapter Notes - Chapter 5: Seminal Vesicle, Garry Bushell, Acne Vulgaris

• School: Western University
• Department: Psychology
• Course: Psychology 2075
• Professor: William Fisher

Document Summary

Chapter 5: sex hormones, sexual differentiation, and menstruation. Major sex hormones are testosterone (produced in males by the testes) and estrogen and progesterone (produced in females by the ovaries) Both men and women have both testosterone and estrogen. Levels of sex hormones are regulated by two hormones secreted by the pituitary: fsh (follicle-stimulating hormone) and lh (luteinizing hormone) which are in turn regulated by gnrh (gonadotropin releasing hormone) secreted by the hypothalamus. The gonads, pituitary, and hypothalamus regulate one another"s output through a negative feedback loop. Biologically, the menstrual cycle is divided into four [4] phases: follicular phase, ovulation, luteal phase, menstruation. Corresponding to these phases, there are changes in the levels of pituitary hormones (fsh and lh) and in the levels of ovarian hormones (estrogen and progesterone), as well as changes in the ovaries and the uterus. A fairly common menstrual problem is dysmenorrhea (painful menstruation)