How Do Molecules Pass Through Fenestrated Capillaries?

[sameeralord]

Hello everyone,

In fenestrated capillary there are holes inside the endothelial cell, I don't understand how cells can have holes? Does this mean that individual holes in endothelial cells are covered by a lipid membrane? Can anyone tell how can there be holes in an individual cells when lipid membrane usually covers the whole cell. Thanks

 

[sameeralord]

Now I realized each capillary is covered by a basal lamina, now how do the molecules pass through this after they pass through the pores?