Difference between revisions of "Nervous System Overview"
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*'''PERIPHERAL''' | *'''PERIPHERAL''' | ||
**'''Somatic''' | **'''Somatic''' | ||
| − | ***Motor: ''primary motor cortex [[glutamatergic]] UMNs'' > ''corticospinal tract'' > ''anterior horn [[cholinergic]] alpha motor neurons (LMNs)'' > ventral roots > peripheral nerves > [[nAChRs]] on skeletal muscles | + | ***Efferent/Motor: ''primary motor cortex [[glutamatergic]] UMNs'' > ''corticospinal tract'' > ''anterior horn [[cholinergic]] alpha motor neurons (LMNs)'' > ventral roots > peripheral nerves > [[nAChRs]] on skeletal muscles |
| − | ***Sensory: peripheral sensory receptors > peripheral nerves > dorsal roots > ''DCML/spinothalamic'' | + | ***Afferent/Sensory: peripheral sensory receptors > peripheral nerves > dorsal roots > ''DCML/spinothalamic'' |
**'''Autonomic''' | **'''Autonomic''' | ||
| − | ***Sympathetic: ''lateral horn [[cholinergic]] preganglionic neurons'' > ventral roots > white ramus communicans > | + | ***Sympathetic |
| − | ***Parasympathetic: craniosacral outflow from CN III/VII/IX | + | ****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 | ||
| + | ****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''' | **'''Enteric''' | ||
Latest revision as of 05:00, 4 February 2023
- CENTRAL
- Brain
- Forebrain
- Midbrain
- Hindbrain
- Spinal Cord
- Cervical
- Thoracic
- Lumbar
- Sacral
- Brain
- 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
- 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 receptors (α1/α2, β1/β2) on target organs
- Afferent: ...
- Parasympathetic
- 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: ...
- Sympathetic
- Enteric
- Somatic