Sexual and reproductive anatomy and physiology

The first module of the Sexuality and Reproduction track.  This course also provides an introduction to the role of the menstrual cycle in whole-body function and health, and discusses the anatomy and physiology of sexual response and desire.  This course is designed to be completed in two months, and includes two live class sessions with main instructor Jenny Koos on September 8, 2026 at 9AM PST and September 22, 2026 at 9AM PDT.

Learning objectives:

1. Explain the basics of the endocrine system and hormone function and feedback

2. Describe the basic principles of psychoneuroimmunology, including how the nervous system, immune system, and mental processes interact with the endocrine system

3. Describe the structure and basic functions of both female and male reproductive systems, including testicular function, ovarian function, conception, pregnancy, childbirth, and lactation

4. Describe the phases and events of the menstrual cycle, including the physiological functions of key reproductive hormones, as well as their role in menstrual cycle regulation

5. Explain current models of sexual response with a focus on female anatomy and physiology



Meet the Contributors

Jenny Koos, Dr. Anne Liljedahl, and Sheri Winston


Jenny Koos is an author, lecturer, and teacher with extensive training and experience in fertility awareness and menstrual cycle health.  Jenny has been a faculty member at Justisse College International since 2014. Jenny is a Fertility awareness Educator and a Holistic Reproductive Health Practitioner (HRHP) and has become a prominent voice in Swedish public discourse on bodily autonomy and health rights, educating thousands of people in Sweden and internationally, and has become an influential spokesperson on fertility awareness and menstrual cycle literacy. Her first book “Fertilitetsförståelse” (“Fertility Awareness”) was published in 2022. 


Dr. Anne Liljedahl is a specialist physician in general medicine and emergency medicine, with a particular passion for women’s health and hormonal health.  Anne completed her medical degree in Linköping, carried out her internship (AT) in Norrköping, and became a specialist in emergency medicine and general medicine in Piteå. Anne is also a certified Holistic Reproductive Health Practitioner (HRHP) and  Fertility Awareness Educator (FAE). Anne is a member of the Swedish National Board of Health and Welfare’s reference group on pelvic floor dysfunction. 


Sheri Winston (CNM, RN, BSN, LMT) is a seasoned sexuality teacher, award-winning author and medical professional who offers empowering and entertaining erotic education for everyone. She is the author of the celebrated books Women’s Anatomy of Arousal: Secret Maps to Buried Pleasure and Succulent SexCraft: Your Hands-On Guide to Erotic Play and Practice and the founder of the Intimate Arts Center.  She delights in inspiring people to have a lot more pleasure, fun, and fulfillment! 

Course Opens September 1st

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