Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthWhich event reduces touch discrimination on fingertips following prolonged compression?
A)Decreased mechanoreceptor firing frequency✓
B)Increased somatosensory cortex inhibition
C)Elevated circulating histamine levels
D)Compromised dermal collagen matrix function
💡 Explanation
Decreased firing occurs because prolonged compression desensitizes the mechanoreceptors via adaptation that reduces action potential firing. This sensory adaptation changes signal transduction, therefore reducing sensitivity and the precision of discrimination, rather than other general inflammatory or cortical mechanisms.
🏆 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 →- If descending modulatory pathways from the periaqueductal gray (PAG) are lesioned, which consequence follows regarding nociceptor signaling after a painful stimulus?
- Why does continued stimulant abuse escalate compulsive drug-seeking behavior related to the nucleus accumbens?
- Why does therapeutic hypothermia sometimes fail to prevent neuronal damage after ischemic stroke, even when reperfusion is achieved?
- Why does renal tubule obstruction due to crystallization promote further kidney stone formation rather than simple clearance?
- Which outcome occurs when asymmetrical forces affect bone?
- Why does administering a selective COX-2 inhibitor after cardiac surgery increase the risk of delayed sternal closure?
