Since I accidentally deleted the comment of another deviant (whose name I sadly can't recall) when I wanted to answer it:
Yes, every vertebrate has the same amount of neck vertebrae (seven, to name the actual number). I didn't mean that the upper body was exactly like the neck of a horse, sorry if I wrote so you could misunderstand it.
I first wanted to place heart and lungs inside the human part, but I met some problems, like ribs down the whole body would be very constricted in its movement. So I decided that the male body would be like a horses neck, considering the ORGANS it contained. I probably didn't made this point clear and so you misunderstood me. The chest is there but only as something to fix the muscles of the shoulderblades. Perhaps now you won't see a fault in my reasoning and why I did, what I did, if you read it and don't think I just backed down.
And in case you, my dear deviant, whose name I sadly don't remember, want do pick some more fights about anatomy: I did think about it for about half a year, before I came up with my anatomy studies and I did study vertebrate (animal) anatomy for for semesters, due to my education. Get it on.