Most insects have separate sexes with complex reproductive systems Accessory gland Ejaculatory duct Testis Vas deferens Seminal vesicle Penis Ovary Oviduct Spermatheca Vagina…

Hormone Cycles Pg. 394 Male Hypothalamus releases GnRH GnRH causes the pituitary to release: Male FSH which : Acts on sperm producing cells Nurse cells (Sertoli) release…

Human Development Hormones and the menstrual cycle The menstrual cycle is approximately 28 days. The menstrual cycle is regulated by hormones produced by the pituitary gland.…

29 Female reproductive system Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Female Reproductive Anatomy Ovaries are the primary female reproductive…

http://kidshealth.org/misc/movie/bodybasics/bodybasics_female_repro.html The ovaries are organs that are responsible for the development of female gametes. At birth around…