Changes

==Introduction==

==Introduction==

The term implantation is often used to mean attachment of the placental membranes to the endometrium in most animals.  True implantation is a phenomenon in rodents and humans in which the conceptus 'buries' itself in the uterine endometrium.  The conceptus temporarily disappears beneath the surface.  In most other species, the conceptus does not truly implant, but attaches to the endometrial surface and remains in the luminal compartment.

The term, 'implantation' is often used to describe the attachment of the placental membranes to the endometrium in most animals.  True implantation is a phenomenon in rodents and humans in which the conceptus 'buries' itself in the uterine endometrium.  The conceptus temporarily disappears beneath the surface.  In most other species, the conceptus does not truly implant, but attaches to the endometrial surface and remains in the luminal compartment.

==Growth Rates==

==Growth Rates==