BIOL 243 · The Reproductive System · USC Upstate

Reproductive System Walkthrough

How sperm and eggs are made, how hormones run the monthly cycle, one step at a time. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · BIOL 243 Human Anatomy & Physiology · Chapter 27, The Reproductive System (OpenStax Anatomy & Physiology 2e) · Use the left and right arrow keys to move between steps. Try it hands-on in the Reproductive System Lab.
Diagrams are schematic, simplified and not to scale. Chromosomes are shown as 2 pairs instead of 23, hormone curves are relative teaching curves for an idealized 28-day cycle, and time is sped up.