The above link will take you to a rotating representation of a human with the thoracic organs visible.
It represents a fair depiction of internal human anatomy. But one thing I learned, when I took Gross Anatomy and looked at about 10 cadavers; is that there is some variation in human anatomy from person to person.
NRA Life Member - Orange Gunsite Member - NRA Certified Pistol Instructor
"When plunder becomes a way of life for a group of men living together in society,
they create for themselves in the course of time a legal system that authorizes it and a moral code that justifies it." Frederic Bastiat