A 7-year-old boy develops swollen ankles, swollen eyes, and most

disturbing to his mother is that his urine is foamy. The patient is diagnosed

with minimal change disease, a common disorder affecting the renal corpuscles

in children. One of the characteristic histological features of this condition

is the absence of pedicels, the protrusions of cells that are part of the

filtration barrier. How do we call these cells?