Either of two slender bones, each
Articulating with the sternum.
From the Latin clavicula: key,
Tendril, door-bolt become
Fasteners in human anatomy,
Lugnut mixed with calcium.
Also called the collar bone, attached
At one end to the shoulder blade.
Is shaped like the letter f (this doesn’t match
the original text—the ink’s decayed
and left a gap. Editor’s note: we’ve patched
this line with “f,” a consonant band-aid).