Don't know your spleen from your adrenals? Test yourself

New research suggests we are dangerously ignorant of the location of some of our anatomical structures

When it comes to the human body, it's not merely our posteriors that most of us have trouble distinguishing from our elbows.

In a recent survey, fewer than 15% of participants could pinpoint their adrenal glands. The spleen was correctly located by 20% of participants and the gallbladder by 25%. Four in 10 were unable to pinpoint the heart on a blank template of the human body.