Class: Find Your Backsides With Both Hands Please. If You Can

From Science Daily:

"A study of patients and members of the public has shown that most lack even basic knowledge of human anatomy. The research found that people were generally incapable of identifying the location of major organs, even if they were currently receiving relevant treatment."

Might there be a correlation here with the fact that many people cannot find themselves on a map?

I thought biology and geography were still subjects taught in the schools.