From Head to Toe, 33

Head to Toe:

Boning Up on the Bones of the Body

Hand (b): lunate bone

I’m guessing now—I’ve not yet looked—

That lunate’s like the moon?

I see that luna root and think,

I gotta check—and soon.

And now I’ve checked—and I am right!—

A crescent-shape, this bone.

It’s small—it’s present in the wrist—

And does not work alone.