Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthWhich consequence arises when tetanus toxin inhibits synaptic vesicles' fusion?
A)Involuntary muscle contractions and rigidity✓
B)Loss of fast pain perception
C)Increased neuron repolarization speed
D)Accelerated skeletal muscle regeneration
💡 Explanation
Tetanus toxin impairs synaptic vesicle fusion in inhibitory neurons, resulting in unchecked excitatory signals in motor neurons. This prevents muscle relaxation because normal neurotransmitter release is blocked; therefore, severe muscle spasms occur rather than controlled movements.
🏆 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 a sound engineer increases the compression ratio during audio mastering, which consequence follows for listener perception?
- Why does supplemental oxygen at high altitude often fail to fully restore arterial oxygen saturation in individuals with advanced emphysema?
- If a collegiate athlete suffers a concussion during a game and a standardized concussion protocol is immediately initiated, which consequence related to cellular energy is most likely?
- If interstitial hydrostatic pressure significantly rises due to impaired lymphatic drainage after lower limb trauma, which consequence is most likely?
- If a patient exhibits severe dehydration with elevated plasma osmolality and decreased blood pressure, which consequence directly results from increased aquaporin expression in the collecting ducts?
- During sleep, what causes the increased amplitude of slow waves measured by EEG in the cerebral cortex as sleep pressure increases?
