There may be an English translation but I am unaware of it.
As far as the body parts categorized by the Chareidim his breakdown includes, heart, eyes, ears, mouth & windpipe, food pipe, nose, hands, feet, and reproductive organ.
He does not list back, spine, or neck separately. The gemara however says that bowing properly by Shmoneh Esrei effects the back/spine. Wiht regard to the neck, the Smak brings that there is an aveira of being stiff necked, V'arpichem Lo Sakshu Od (Devarim 10:16). This he says means to love to hear rebuke and love those who rebuke you.
I hope this helps. Hatzlacha Rabba,