The Cerebro-Somatic Transduction Cascade

[Verse 1] Initiate acoustic perturbations, ambiently transduced! Pinna topology funnels wave-fronts, impedance reduced! External auditory meatus resonance, ceruminous factors aside, Tympanic membrane's pars tensa vibrates, where ossicles reside! Malleus, incus, stapes amplification – note the tensor tympani's reflex arc, Stapedius contraction latency mitigating hyperacusis in the dark! Oval window pressure gradients induce perilymph displacement, see? Scala vestibuli, scala tympani, Reissner's membrane's decree! Basilar membrane tonotopic frequency analysis, exquisitely mapped, Inner hair cell stereocilia shear, tip-link tension adapted! Mechano-electrical transduction via Piezo2 channels, ion flux ignite, Potassium influx, depolarization, calcium channels open bright! Glutamate release at the ribbon synapse, afferent spiral ganglion fired, Action potentials on the vestibulocochlear nerve (CN VIII), as required! [Chorus] Oh, the Cerebro-Somatic Transduction Cascade, a marvel to behold! From cochlear nucleus subdivisions, stories manifold! Dorsal, ventral, anteroventral – distinctions must be made, Trapezoid body decussation, superior olivary nuclei invade! Lateral lemniscus ascension, contralateral dominance presumed, Inferior colliculus integration, multisensory inputs consumed! Medial geniculate body relay (ventral nucleus, primarily stressed), Auditory cortex in temporal gyri puts meaning to the test! [Verse 2] (Back to rapid-fire, adding more layers) Primary auditory cortex (A1) to Wernicke's comprehension phase, Arcuate fasciculus transmission through associative neural haze! Prefrontal cortex executive function, decision calculus inferred, Hippocampal engram retrieval, CA1-CA3 patterns stirred! Amygdala emotional valence tagging, salience network alight, Basal ganglia direct/indirect pathways modulating motor might! Supplementary motor area planning, premotor cortex set, Primary motor cortex (M1) Betz cells firing, no time for regret! Corticobulbar tracts diverge, corticospinal pathways descend, Internal capsule's posterior limb, on which commands depend! Cerebral peduncles, pontine nuclei, medullary pyramids defined, Decussation completes the process, contralateral control assigned! Lateral and anterior corticospinal tracts engage the spinal gray, Alpha motor neuron activation, acetylcholine holds sway! Neuromuscular junction's synaptic cleft, nicotinic receptors bind, Muscle fiber end-plate potential, excitation-contraction coupling aligned! Actin-myosin cross-bridge cycling, sarcomeres contract with force, Brachial plexus innervation follows its predetermined course! [Chorus] Oh, the Cerebro-Somatic Transduction Cascade, intricate and vast! Every synapse firing, a shadow from the past! From cochlear nucleus subdivisions, stories manifold! Thalamic radiations bursting, brave and bold! Lateral lemniscus ascension, complex patterns bloom! Inferior colliculus integration, escaping echo's tomb!