From Head to Toe, 6

Head to Toe:

Boning Up on the Bones of the Body

Skull (e): cranial bones  3: sphenoid bone

The sphenoid bone lies toward the front,

Where, every day, it must confront

All matter that approaches you—

But it does what such bones must do:

Protect what is behind the bone.

So ain’t that great? You’re not alone!