An elderly patient with peripheral neuropathy struggles to maintain balance on uneven ground. Which mechanism primarily underlies this instability?

💡 Explanation

Loss of tactile feedback from cutaneous mechanoreceptors in the feet impairs the ability to sense surface variations; because the patient can't detect subtle changes, balance is compromised, therefore cutaneous mechanoreceptor signaling defects cause instability rather than primary muscle spindle or vestibular dysfunction.

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