English: SVG version of image, adding several aspects not reproducible by any photograph, including the shape and orientation of the enamel rods (interlocking keyholes oriented away from the surface of the dentin) and of the dentin tubules (S-shaped fibers stretching between the pulp and the enamel/ cementum layer, thicker on the pulp end and narrow on the enamel end). The hollow nature of the pulp chamber is also suggested (difficult to even suggest in a photo), and the flow of oxygenated and deoxygenated blood is shown (impossible except in a diagram) as well as the porous nature of the surrounding bone.