Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthWhich signal delay results from hypomyelination during development?
A)Reduced saltatory conduction velocity✓
B)Increased glutamate receptor desensitization
C)Enhanced temporal lobe gamma rhythms
D)Decreased cerebellar Purkinje cell firing
💡 Explanation
Hypomyelination impairs the insulating properties in neurons, directly affecting saltatory conduction, because the myelin sheath facilitates rapid action potential propagation. Therefore, reduced conduction velocities results, rather than receptor or distinct brain regions being directly impacted because of myelin.
🏆 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 →- A patient with a hypothalamic lesion is exposed to a 45°C (113°F) environment. Why does the patient's body temperature rise rapidly, despite profuse sweating?
- Why does heat stroke, rather than heat exhaustion, frequently result when an elderly person takes anticholinergic medications during a heat wave?
- Why does marathon running in high humidity increase risk of exertional heat stroke, despite physiological thermoregulation?
- If a drug with high hepatic extraction ratio is switched from intravenous to oral administration, which consequence follows regarding plasma concentration?
- An individual presents with elevated TSH despite normal T4 levels; the pituitary gland shows no signs of tumors. Which mechanism explains why TSH remains elevated?
- Why does aggregated alpha-synuclein in Parkinson's disease trigger neuronal death via the ubiquitin-proteasome system (UPS)?
