Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A, neck vertebrae from C3–C7; B, sixth cervical vertebra in lateral view. Abbreviations: C3–7, cervical vertebrae; epi, epipophysis; k, keel; ns, neural spine; prz, prezygapophysis; r, ribs. Scale bar equals 1 cm.
