Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthIf a patient reports diminished fine touch discrimination in their fingertips following median nerve compression at the carpal tunnel, which consequence follows regarding the activation of mechanoreceptors?
A)Increased firing of Pacinian corpuscles
B)Reduced firing of Meissner's corpuscles✓
C)Upregulation of Merkel cell density
D)Enhanced Ruffini ending stimulation
💡 Explanation
Compression of the median nerve preferentially affects low-threshold mechanoreceptors, including Meissner's corpuscles, which are crucial for fine touch; because these receptors are impaired, the firing rate decreases, therefore compromising the perception of fine details, rather than enhancing other touch-related receptors.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Human Body & Health →- Why does hypokalemia (low potassium) frequently accompany the use of loop diuretics like furosemide in patients with renal dysfunction?
- Why does increased thyroid hormone production, as seen in Graves' disease, lead to tachycardia (rapid heart rate)?
- Why does the countercurrent multiplier system maintain a high salt concentration in the medullary interstitium of the kidney, despite continuous blood flow?
- In a patient experiencing septic shock and resulting acidosis, which alteration in hemoglobin's behavior within blood is most likely?
- Why does sensorineural hearing loss from sustained loud noise exposure often affect high frequencies first, but not low?
- If a medication dilates systemic arterioles, which consequence follows regarding homeostatic control of blood pressure?
