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Nervous System Overview (view source)
Revision as of 05:00, 4 February 2023
, 05:00, 4 February 2023no edit summary
*Central
*'''CENTRAL'''
**Brain
**'''Brain'''
**Spinal Cord
***Forebrain
*Peripheral
***Midbrain
**Somatic
***Hindbrain
**Autonomic
**'''Spinal Cord'''
***Cervical
***Thoracic
***Lumbar
***Sacral
*'''PERIPHERAL'''
**'''Somatic'''
***Efferent/Motor: ''primary motor cortex [[glutamatergic]] UMNs'' > ''corticospinal tract'' > ''anterior horn [[cholinergic]] alpha motor neurons (LMNs)'' > ventral roots > peripheral nerves > [[nAChRs]] on skeletal muscles
***Afferent/Sensory: peripheral sensory receptors > peripheral nerves > dorsal roots > ''DCML/spinothalamic''
**'''Autonomic'''
***Sympathetic
***Sympathetic
****Efferent: ''lateral horn [[cholinergic]] preganglionic neurons'' > ventral roots > white ramus communicans > [[nAChRs]] on postganglionic [[noradrenergic]] neurons in the paravertebral sympathetic chain or prevertebral ganglia > gray ramus communicans > peripheral nerves > [[Adrenergic Pharmacology|'''adrenergic''']] receptors (α1/α2, β1/β2) on target organs
****Afferent: ...
***Parasympathetic
***Parasympathetic
**Enteric
****Efferent: ''[[cholinergic]] preganglionic neurons'' > craniosacral outflow from CN III/VII/IX, CN X, and S2-S4 > [[nAChRs]] on postganglionic [[cholinergic]] neurons in the parasympathetic/peripheral ganglia on/near target organs > (trigeminal nerve branches for efferents from CN III/VII/IX) > [[mAChRs]] (M1/M2/M3) on target organs
****Afferent: ...
**'''Enteric'''