From the manufacturer:
In the first volume of Dr. Livingston’s Anatomy Jigsaw Puzzles, you’ll assemble a cross-cut section that gives you a clear view of the components of the head and neck. You’ll see how they interlock and overlap with marvelous complexity. Piece together the brain, and the thick, bony skull which protects the brain, and the jaw and teeth. You’ll assemble one eye and the muscles that support and move it. As you build the neck you’ll marvel at how it serves as an information superhighway - protecting the spinal cord, a concourse of blood vessels and nerves, and housing the esophagus, larynx, trachea, and thyroid gland. Complete the puzzle by fitting in the muscles of the neck which support and move the heavy head.