Assertion: alimentary canal's cell | /r/HasProperty | arranged in outer layer
Facets:
value: in tubules
type: OTHER
Source sentences:
text: It consists of mesenchymal tissue and epithelial cells that are arranged either in an outer layer covering the surface of the gonad (coelomic epithelium), or in tubules that are branches of the mesonephric duct (mesonephric tubules).