The trabecular meshwork (TM) sits in the angle of the anterior chamber and is the main conventional outflow channel for aqueous humour. Anatomically it is organised into three concentric layers:
$1.$ Uveal meshwork - the most internal layer facing the anterior chamber, with wide intertrabecular spaces.
$2.$ Corneoscleral meshwork - the bulky middle layer with progressively smaller pores.
$3.$ Juxtacanalicular (cribriform) meshwork - the thin outermost layer abutting the endothelium of Schlemm canal, and the site of maximal outflow resistance (relevant in primary open-angle glaucoma).
The canal of Schlemm is the circumferential endothelium-lined channel that drains filtered aqueous into the episcleral collector channels and aqueous veins; it lies beyond the meshwork and is therefore not counted as a meshwork component.
Hence the meshwork is made of the uveal, corneoscleral and juxtacanalicular parts only.
\[\boxed{\text{Uveal} + \text{Corneoscleral} + \text{Juxtacanalicular meshwork}}\]