Assertion: endocrine system's gland | /r/HasProperty | part of the kidney
Facets:
Source sentences:
text: The suprarenal nature of the glands was not truly accepted until the 19th century, as anatomists clarified the ductless nature of the glands and their likely secretory role – prior to this, there was some debate as to whether the glands were indeed suprarenal or part of the kidney.