Placenta Power

By the end of which month of pregnancy in humans, does the foetus develop limbs and digits?

When can the first movements of the foetus and appearance of hair on the head be observed in humans?

By the end of which trimester in humans, are most of the major organ systems formed?

At what stage of pregnancy in humans, is the embryo's heart formed?

By the end of how many weeks of pregnancy in humans, is the body covered with fine hair, eye-lids separate, and eyelashes formed?

How long does human pregnancy typically last?

How long does pregnancy typically last in dogs?

How long does pregnancy typically last in elephants?

How long does pregnancy typically last in cats?

By the end of how many months of pregnancy in humans, is the foetus fully developed and ready for delivery?

During pregnancy, the placenta facilitates the supply of _______ to the embryo.

Which of the following hormones is NOT produced by the placenta during pregnancy?

What is the function of the umbilical cord?

Which of the following hormones is NOT increased severalfolds in the maternal blood during pregnancy?

Which layer of the inner cell mass gives rise to all tissues and organs in adults?

What are the finger-like projections on the trophoblast called?

What is the structural and functional unit formed by the interdigitation of chorionic villi and uterine tissue?

Which hormone is secreted by the ovary during the later phase of pregnancy?

Which of the following is NOT a hormone produced by the placenta?

What is the role of the placenta as an endocrine tissue?