the basic map inverted 
fetus
Yin and Yang
Reflexology meets Traditional Chinese Medicine with Auricular Therapy
Sources
https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-prn1/10492212_783290271713494_8937612544705528944_n-1.jpg
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2206232/