Some are outdated because people make new words
Knowing planes, body positions, directions and such can help people locate areas on the body more easily and precisely. One occupation could be a forensic pathologist who need to identify main points of interest on a body
A.) Right
I remember that whenever my mom turns on the windshield wipers, she pulls down a lever to the RIGHT of the steering wheel. :)
it's the circulatory system,the heart and blood vessels
