If a person experiences hypocalcemia, and the voltage-gated sodium channels of the neuromuscular junction become more sensitive, which consequence follows?

💡 Explanation

Hypocalcemia increases the excitability of nerve and muscle cells because it reduces the threshold for action potential firing. Therefore, spontaneous muscle contractions (tetany) occur, rather than reduced strength, because the neuromuscular junction is more easily depolarized.

• Why does chronic intense pain sometimes persist even after nociceptor signals are blocked by localized anesthetics?
• During in-vitro fertilization (IVF), what causes a higher incidence of multiple pregnancies after multiple embryo transfer?
• Why does intense exercise cause muscle fatigue faster in fast-twitch muscle fibers compared to slow-twitch fibers?
• Why does mean arterial pressure (MAP) decrease after a sudden, severe cardiac arrhythmia?
• Why does insulin resistance often develop in obese individuals with chronically elevated blood glucose levels?
• Why does resistance training in aging adults lead to muscle hypertrophy, despite decreased satellite cell activation?