Using patent US7588074B1

     Notice the same basic curvature of Fig 7 of a heat pipe of the patent with the curves of the microvilli of living tissue and the mandrels used to form and/or repair the flairs of brass horns such as trumpets, trombones, tubas, etc.
     The patent is exchanging heat/cold, the living tissue is transferring nutrients, gasses, liquids, etc. and the metal mandrels are maintaining the shapes of the horns for the best sound transmission. Different forms of energy, but the same principle of efficient energy transmission with different medium.
     In the science of exchanging temperatures and pressures, of solids, and fluids, the same principles apply to the shapes of the materials used to do the work, whether it be heat sinks, radiators, condensers, transfer pipes, conducting plates and surfaces, exhaust nozzles, ducting, etc.
     In the sciences of electromagnetics, the same principles apply.

The attenuation of the intensities of the various energies follows the same principles as the transfer of the energies.