Speculative meandering postulate: Evolutionary theorists use the laryngeal nearve to suggest that there is no intelligent designer because it follows a seemingly useless path from brain around the heart before returning up to reach the larnyx [ see wikipedia or dawkins dissecting a giraffe ].
Poetry might suggest that the laryngeal nerve is reaching downward for a brief proximal consultation with cardio-neurons (affect-check) before activating voice.

“… a distinct compulsive behavioral disorder is associated with mutant microglia.”
Chen et al. Cell, Volume 141, Issue 5, 775-785, 28 May 2010
New imaging technologies reveal the intricate architecture of the brain, creating a blueprint of its connectivity.

“Diffusion spectrum imaging (DSI) … uses magnetic resonance signals to track the movement of water molecules in the brain: water diffuses along the length of neural wires, called axons. Scientists can use these diffusion measurements to map the wires, creating a detailed blueprint of the brain’s connectivity.”
Miyawaki, Y. et al. Neuron 60, 915–929 (2008). - Visual Image Reconstruction from Human Brain Activity using a Combination of Multiscale Local Image Decoders

“In this study, we reconstructed visual images by combining local image bases of multiple scales, whose contrasts were independently decoded from fMRI activity by automatically selecting relevant voxels and exploiting their correlated patterns.”
“Recent advances in human neuroimaging have shown that it is possible to accurately decode a person’s conscious experience based only on non-invasive measurements of their brain activity.”
Haynes, J and Rees, G (2006).Decoding mental states from brain activity in humans. Nat Rev Neurosci 7(7):523-34.
In layman’s terms: “Mindreading scientists predict behavior”
“Think of the 100 billion times per day humans click on a Web page as a way of teaching the Machine what we think is important. Each time we forge a link between words, we teach it an idea.”
Kevin Kelly. We are the Web. Wired. Issue 13.08 – August 2005

“The brain needs no central-control mechanism to direct mental life; interactions within and among networks do the trick.”