For the cartoonists on the site, here's a couple of anatomical oddities that you might not have noticed before. For one thing, an awful lot of people don't have much of a trunk. Classical anatomy charts (above) tell us that we all have one...a space between the bottom of the ribs and the pelvis... but you don't see it in a lot of real-life poses.
From the side (above) we get a different picture. In the back we see a trunk line from the bottom of the scapula to the beginning of the bulge. So the trunk is there, but it's wedge-shaped, and only visible from the back and side.
Are you skeptical? Look at this guy's arms (above). They connect to the body way below the shoulder. It's as if he was wearing shoulder pads.
Even if your arms did connect directly to the shoulders the clothes you wear (above) might make it look otherwise. Most suit jackets are padded.