The implantation of the blastocyst results from

A. enzymes digesting the endometrium around the blastocyst.
B. hCG stimulating the growth of trophoblast blood vessels.
C. the cessation of the reproductive cycle.
D. hyaluronic acid breaking down the myometrium around the blastocyst.


Answer: A

Anatomy & Physiology

You might also like to view...

Which of the following numbers is within the homeostatic pH balance of blood?

-6.40 -7.42 -7.50 -7.30

Anatomy & Physiology

Which condition listed is a sex chromosome aneuploidy, caused by the presence of a single X chromosome designated XO?

a) Emesis gravidarum b) Deformation c) Turner's syndrome d) Breech presentation e) Klinefelter's syndrome

Anatomy & Physiology

Which of the following is an example of a flat bone?

Which of the following is an example of a flat bone? A. talus B. maxilla C. radius D. scapula

Anatomy & Physiology

An important mechanism that controls metabolic pathways under physiological

conditions is A) negative feedback. B) genetic control. C) signal transduction. D) positive feedback.

Anatomy & Physiology