superior segment

If one is on one's back, it goes to the superior segment of the right lower lobe.

The skeletal section of the head and neck forms the superior segment of the axial skeleton and comprises skull, hyoid bone, auditory ossicles, and cervical spine.

From people with nylon hip joints to those with prosthetic appendages or surgically implanted eye lenses, like mine, they are part of a growing and in some ways superior segment of Homo sapiens.