What determines glomerular capillary permeability?
J. Clin. Invest. William M. Deen, et al. 114:1412
doi:10.1172/JCI23577 [Go to this article.]

Figure 1
Glomerular capillary wall, consisting principally of a fenestrated endothelium, a basement membrane, and epithelial foot processes. The foot processes form filtration slits spanned by slit diaphragms. Also shown is the endothelial cell coat, or glycocalyx. Some approximate dimensions are (8, 10): minimum diameter of fenestra, 30 nm; GBM thickness, 200–400 nm (depending on species); width of filtration slit, 40 nm. The glycocalyx thickness is uncertain. Figure is not drawn to scale.