What is specifically contained in letter D?

Does the structure at “A” contain fetal blood or maternal blood?

Identify the REGION indicated by box A that contains blood supply

                    What is the specific function of the structures contained in region F?

Which is the maternal side of the placenta, A or B?

Name the hormone responsible for the activity demonstrated in the image above.

Name the hormone produced by the cells at pointer B.

 Identify the specific tubes at letter E.

Properly identify the layer of the structure labeled  “G”

Identify the type of epithelium found at the structure indicated by the arrow.