FETAL CIRCULATION

A few sites that have information on fetal circulation. The first one has a test at the end.

http://www.indiana.edu/~anat550/cvanim/fetcirc/fetcirc.html

http://mcb.berkeley.edu/courses/mcb135e/fetal.html

http://www.studentmidwife.net/educational-resources-35/midwifery-glossary-and-definition-terms-41/3464-fetal-circulation.html