My understanding of anatomy isn't very good, so I'd love some help. The most commonly seen way, in movies and tv, of stabbing someone in the back is the old melodramatic grasp the knife with the blade extending downward past the pinkey finger, raise the arm over the head, and plunge the knife downward into the back. Only problem is that I've read that doing this would be unlikely to result in the blade entering the body cavity: you'd run the risk of hitting the shoulderblade, and even if you missed, the ribs overlap so that you'd probably just skitter along them. Not fun for the victim, but not fatal
The proper way, as I understand it, is to hold the knife in the other orientation, with the blade coming out between the thumb and forefinger, and thrust upward through the rib cage.
My question is this: if you made such a thrust, and the knife entered just under the shoulderblade, what would it hit? Would it actually penetrate the heart? I realize that there are a number of variables here. Perhaps I mean to ask, would it be likely or possible to hit the heart in this manner?
Thanks. I must have missed the episode of CSI that dealt with this in detail.