nx_neuro.nx

nx_neuro.nx -- ★THE INNERVATION PLANE: the nervous system as a MAPPED TOPOLOGY, and autonomic responses (arousal among them) COMPUTED FROM IT rather than painted on top. ★THE GAP THIS CLOSES, measured 2026-07-27 by nx_bodyatlas_gate: the atlas carries NERVOUS as system 7 with SEVEN ellipsoid proxy parts against 12 cranial + 31 spinal nerve PAIRS = 86 nerves before a single branch (~8 percent), and -- the part that actually matters -- NOTHING ANYWHERE SAYS WHAT ANY NERVE CONNECTS TO. A nerve drawn as a blob is scenery. A nerve is a ROUTE: a root level, a division, and a target it drives. Until the route exists, no response can be caused by anatomy. ★★AND IT CLOSES THE SAME CLASS ONE LEVEL OUT. This lane's standing finding is 'our face is PAINTED, not sculpted' -- colour where geometry belonged. The physiological equivalent is a response that is a GLOBAL SCALAR with a suggestive name. Flush, tumescence, sweat and pupil are not one knob: they are separate effectors on separate outflows, and the proof is that they DISSOCIATE under a lesion. So the discriminating tooth in this organ is a LESION: cut S2-S4 and genital vasocongestion must fall to EXACTLY ZERO while cutaneous flush is UNCHANGED. ★A single arousal scalar cannot pass that tooth. ★★★THE MODEL CANNOT EXPRESS AN IMPOSSIBLE NERVOUS SYSTEM, BY CONSTRUCTION. Two structural laws are checked on every row rather than trusted: THORACOLUMBAR OUTFLOW -- a SYMPATHETIC fibre leaves the cord only between T1 and L2. CRANIOSACRAL OUTFLOW -- a PARASYMPATHETIC fibre leaves only via a cranial nerve or S2-S4. These are not conventions, they are where the preganglionic cell columns physically are. Encoding them as containment means a sacral sympathetic or a thoracic parasympathetic is REFUSED at the gate, the way nx_skelgen's joint constraints make a hyperextended knee unrequestable. ★COMPOSES, DOES NOT DUPLICATE (the audit ran FIRST, as it now does every round): nx_myoattach owns muscle ATTACHMENT; nx_bodyatlas owns the peelable systems; nx_fascia owns soft-tissue transmission. NONE of them owns INNERVATION. Muscle indices below are nx_myoattach's own 0..20, READ from that table before a row was written, not assumed. nx_neuro selftest license_tier: ORIGINAL expect_exit: 0 No hw writes (Rule 26).