This week we built the sliding filament theory of muscle contraction and the action potential. Both depend on a precise chemical signal arriving at the right place at the right time.
Pick one disease or toxin that disrupts either muscle contraction or nervous conduction. Examples: myasthenia gravis, organophosphate poisoning, multiple sclerosis, botulinum toxin, malignant hyperthermia, tetanus, Lambert-Eaton syndrome.
In your initial post (200-300 words):
- Name the condition and a one-sentence summary.
- Identify the exact step in the cycle where it disrupts function. Be precise (e.g., "blocks nicotinic ACh receptors at the neuromuscular junction"; "prevents synaptic vesicle release").
- Predict the patient's symptoms from first principles, not from a list you found online.
- Note one treatment and why it targets that step.