Purchase order receipts list and product receipt

Hi All,

when we create receipts list and product receipt in the purchase order.

is there any relation between receipts list and product receipt? if not, then what is the purpose to create receipts list? if there is a relation between them then how to find which product receipts created from which receipts list ?

Is receipts list maintaining in inventory transaction? if Yes then when?

can we create product receipt from receipts list?

can any one please help me out.

Thank you so much.