| Spinous process of C7 | First prominent spinous process in the back of the neck |
| Spinous process of T1 | Most prominent spinous process; immediately follows C7 |
| Spinous process of T12 | Palpate the 12th rib and trace back to its attachment of T12 |
| Spinous process of L5 | Line drawn between the iliac crests crosses the body of L5 or the L4–L5 interspace |