All of the following are true about layers of cornea except :

Descement membrane: toughest layer of cornea Descement's Membrane : *Act as a basement membrane for the endothelial cells *Type 4 & type 8 are most common type of collagen in DM *Toughest layer that provides protection from perforation *Responsible for descemetocele formation. *Site of deposition of copper as KF ring in wilson's disease (. If dua layer is in option then go for that) Endothelium is responsible for behaving like a pump that maintains the relatively dehydrated state of the cornea thereby maintaining its transparency The other options are all true