mesonephric

Example:The mesonephric kidney is the main kidney of most developing vertebrates, eventually replaced by the metanephric kidney in mammals.

Definition:The middle kidney in vertebrates, forming the sex glands (testes or ovaries) and associated structures in the developing reproductive system.

Example:The mesonephric duct can develop into structures such as the vas deferens in males and the uterine tubes in females following hormonal guidance and differentiation.

Definition:In developing vertebrates, the mesonephric duct originates from the mesonephros and is part of the primary male reproductive tract, also contributing to the development of the female reproductive system.