The Reproductive System & Sexual Physiology
The HPG Axis, Gametes, Cycles, Puberty, Fertility & Reproductive Aging
About this volume
The Reproductive System & Sexual Physiology is Book A9 of The Performance & Human Physiology Encyclopedia — a 93-volume, university-level library on how the human body actually works, system by system. It is written for students, coaches, clinicians and serious self-learners: deep enough that a professional already trained in the field keeps learning, structured clearly enough that a motivated reader can follow every step.
How this book is written
- University level, without dilution. Exact scientific terminology, defined at first use — mechanisms, not just conclusions.
- Numbers, formulas, worked examples. Reference ranges, equations and solved calculations you can apply the same day.
- Myths tested against the evidence. Where a popular claim does not survive the evidence, the book says so — and shows why.
- References at the end of every chapter. Sources cited in APA 7 style, plus a master bibliography.
For general information and education only; not medical advice. Consult a qualified health professional before acting on its content.
Read an excerpt
From Chapter 1 — Introduction to Reproductive Physiology
"Every other organ system keeps you alive. The reproductive system does something stranger and more far-reaching: it keeps the species alive — at some cost and risk to the individual. To do that it runs one of the body's most elegant control circuits, the HPG axis, and wires it to your energy stores, your stress, your sleep, and your age. Understanding that circuit is the key to almost everything that follows in hormonal and athletic health."
Reproductive physiology is the engine room behind topics people care about intensely — puberty, fertility, the menstrual cycle, testosterone, menopause, and how training and nutrition interact with all of them. Most confusion and marketing in this space (“balance your hormones,” “boost your testosterone,” “reset your cycle”) comes from not understanding the control system. Learn the machinery once, and the myths fall away while the real levers come into focus.
What is inside
The 13 chapters of this volume.
- 01
Introduction to Reproductive Physiology
- 02
The Hypothalamic–Pituitary–Gonadal (HPG) Axis
- 03
Sexual Differentiation & Development
- 04
Male Reproductive Anatomy
- 05
Spermatogenesis & the Male Gamete
- 06
Male Hormonal Regulation
- 07
Female Reproductive Anatomy
- 08
Oogenesis & the Ovarian Cycle
- 09
The Menstrual Cycle
- 10
Puberty & Reproductive Maturation
- 11
Fertilization, Implantation & Early Pregnancy Physiology
- 12
Reproductive Aging
- 13
Reproductive Health, Lifestyle & Putting It Into Practice
Volume details
Topics covered
- ovulation and menstruation explained
- spermatogenesis and oogenesis
- testosterone and estrogen physiology
- male and female anatomy
- sexual differentiation in the embryo
- fertilization implantation and early pregnancy
- menopause andropause and ageing gonads
Get this volume
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