has part has part has_part characteristic of has modifier abnormal podocyte slit diaphragm morphology absent podocyte slit diaphragm absence of the thin membrane that covers the podocyte filtration slit which allows small molecules such as water, glucose, and ionic salts to pass through while retaining larger macromolecules in the bloodstream MP:0008061 MPheno.ontology abnormal absent podocyte slit diaphragm