In a manner relating to the carrying of signals or impulses toward the brain or central nervous system.
From 'afferent' (carrying toward) plus the adverb suffix '-ly.' A technical medical and scientific adverb used primarily in neurology and physiology.
While 'afferent' is common in neuroscience classes, you rarely see 'afferently' in writing—it's one of those technical adverbs that exists mainly for completeness rather than frequent use.
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