Extremities

It just goes to show that you only know who your true friends are when you're dying on a hospital table having your extremities snapped this way and that.

I can't feel my extremities.

"Yea, alive, indeed, / alive through all extremities of woe. / Doubt not, thou see'st the truth, no shape of empty show."

The human body consists of a head, neck, and torso, and upper and lower extremities.