Musically, it would be connected to the "arm bone" (or "wrist bone", depending on the version).
Anatomically, there's no such thing as a "hand bone" (there's no "arm bone" or "wrist bone" either), at least not in the sense that there's a single bone known by that name. The hand (and arm, and wrist) contain multiple bones.The bones in the hand are called phalanges (the bones in the fingers and thumb) and metacarpals (the bones buried in the palm). If your version of "Dem Bones" has the hand bone connected to the arm bone without an intermediate "wrist bone", then the "hand bone" would include the carpals (in the wrist) as well (or maybe those are lumped into "arm bone"; the song is so imprecise it's hard to tell).
The carpals all have individual names. The metacarpals are numbered.based on what finger they're in (the thumb is 1, and the numbering goes up moving toward the pinky). The phalanges are numbered as well (the same number as the metacarpal they connect with), with the one that actually has a joint with the metacarpal being the "proximal" phalange, and the one furthest away being the "distal" phalange. In the fingers (but not the thumb) there's a phalange between those two, known (sensibly) as the "intermediate" phalange. So the "fourth proximal phalange" of the left hand would be the one normally surrounded by a wedding ring.
Technically that doesn't answer your question, so here's the literal answer. This should have been obvious, but the "hand bone(s)" are located in the hand.
Below pinky finger
The lunate bone is a carpal located in the hand.
There are 206 bones in in an adult humans body. The Capitate bone is located in the human hand specifically near the base of the hand and just before the wrist,
its in an elbow bone in ur hand.
The Ulna Bone
The name of mid hand bone is metacarpal. These are five in number in each hand.
it is located mainly in the proximal and distal epiphysis (the ends of a bone.)
a fused bone is located in you skull and in your sacrum and coccyx( tail bone)
The scaphoid, or navicular bone is located within the anatomic snuffbox. Pain in this location after a fall on the hand or wrist may indicate a fracture of the scaphoid.
You just take a bone put it in your hand and crush it!
The scaphoid bone is found in the human wrist. It is one of the carpal bones and is found between the hand and forearm on the thumb side of the wrist.
The metacarpal bones in the hand are among the easiest to break due to their location and exposure to direct trauma. These long bones are vulnerable to fractures from impact or excessive force, such as punching or falling onto an outstretched hand. Immediate medical attention is recommended if you suspect a broken bone in your hand.
The longest bone is the femur, and it is located in the thighs.