The ornamental design for a humancentralvenousanatomydemonstration device, as shown and described.
FIG. 1 is a perspective view of a human central venous anatomy demonstration device showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a side view thereof;
FIG. 5 is a side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines are included for the purpose of illustrating portions of the human central venous anatomy demonstration device that form no part of the claimed design.