The Reproductive system.

The reproductive organs are typically contained between the eighth and the fifteenth body segments. Every earthworm has male and female organs. The male organs lie above the female organs and are typically contained in segments ten and eleven. The sperm travel down the sperm duct to the outside ventral surface. The ovaries are typically contained in segment thirteen. The eggs are formed in the ovaries and the mature eggs are dropped into the egg sacs, which open to the ventral surface where the eggs are released to the soil.