How do the reproductive system and the circulatory system work together?

The reproductive and circulatory systems work together to ensure the delivery of hormones and nutrients essential for reproduction. The circulatory system transports key reproductive hormones, such as estrogen and testosterone, from the glands where they are produced to target organs, facilitating processes like ovulation and spermatogenesis. Additionally, during pregnancy, the circulatory system provides oxygen and nutrients to the developing fetus through the placenta, ensuring its growth and development. This collaboration is vital for both the success of reproduction and the overall health of the reproductive system.