The contraction phase of the cardiac cycle is called _______________.

Identify the process that is happening during the stages represented in the models above.

The regions labeled 3 and 4  together make up what layer of the blastocyst?

Identify the sturcture at “A”.

Properly identify the stage labeled  “D”

Name 1 (one) function of the organ at pointer A.

Identify the area indicated by “C”.  (Be specific)

The structure labeled “A” is homologous to what structure in the male?

Is the blood in “B” flowing towards the placenta or towards the fetus?

Identify the cells located at pointer B.