Assertion: kidney's region | /r/HasProperty | metanephros
Facets:
Source sentences:
text: In the male the spermatic tubules of the testis connect with the kidney tubules in the middle region of the archinephros (mesonephros), and in some vertebrates (e.g., the frog) where there is no development of the posterior region (metanephros), the tubules of the mesonephros serve to convey both urine and sperm.