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Figure 1 | Arthritis Research & Therapy

Figure 1

From: The interface between cholinergic pathways and the immune system and its relevance to arthritis

Figure 1

Schematic summary of the types of cholinergic pathway. The following cholinergic pathways are highlighted in green in successive diagrams: (i) central nervous, (ii) preganglionic and postganglionic parasympathetic (cranial and sacral), (iii) preganglionic and postganglionic sympathetic, (iv) somatic motoneuron and (v) non-neural (showing an example of a cholinergic cell-cell interaction). All somatic motoneurons, all sympathetic and parasympathetic preganglionic neurons and most parasympathetic postganglionic neurons are cholinergic; the remainder are subsets. ChAT+ = choline acetyl transferase-positive; that is, acetylcholine (ACh) expressing.

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