From Head to Toe, 27

Head to Toe:

Boning Up on the Bones of the Body

Arm (b): pectoral girdle

The pectoral girdle—shoulder bones

(For those now keeping track).

They keep your arms connected to

Your front—and also back.

Comprising some few other bones,

This girdle has a task—

But keep on reading,* and soon you’ll not

Have questions you must ask!

*this series about bones, that is