During implantation, why doesn't the hyaluronidase erode the trophoblast as well as the endometrium?
A) The trophoblast secretes an enzyme that breaks down the hyaluronidase.
B) The endometrium inactivates the enzyme before it can act on the trophoblast.
C) The trophoblast is coated in anti-hyaluronidase.
D) The outer layer of the trophoblast is syncytial, with no cell junctions for the enzyme to attack.
E) None of the answers are correct.
D) The outer layer of the trophoblast is syncytial, with no cell junctions for the enzyme to attack.
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