capillary blood vessel endothelium fenestrated capillary fenestrated blood vessel endothelium ZFA:0005260 UBERON:2005260 TAO:0005260 UMLS:C1179615 uberon Blood vessel endothelium that has pores that allow passage small molecules and proteins[ZFA]. Capillary that has pores in the endothelial cells (60-80 nm in diameter) that are spanned by a diaphragm of radially oriented fibrils and allow small molecules and limited amounts of protein to diffuse. FMA:63196 Wikipedia:Capillary#Types fenestrated capillary vessel the ZFA class from which this was derived is not explicitly classified as a capillary - need to verify for taxon histology differences NCIT:C32595