1 Botulinum toxin causes muscle paralysis because O calcium is removed from the neuromuscular junction O sodium is removed from the synaptic cleft O the acetylcholine receptors at the motor end-plate are blocked O no acetylcholine enters the synaptic cleft Book 2. Facial wrinkles, such as glabellar or frown" lines, appear with aging as a result of natural, repetitive muscle contractions. Botox® helps alleviate the appearance of these wrinkles by Print Bence O relaxing the facial muscles that cause the wrinkles O destroying the motor nerves that serve the muscles responsible for forming the wrinkles O berstimulating the facial muscles to tighten their appearance O overstimulating the facial nerves to produce a steady contraction of the factal muscles 3. If there was a high concentration of acetylcholine within the synaptic cleft, but little to no response at the motor end-plate you would expect to be the responsible neuromuscular blocking agent O botulinum toxin O curare 4. The antidote that holds the most promise to counteract the effects of tubocuranne is one that O modifies acetylcholine receptors so that they can no longer bind acetylcholine O modities acetylocholine so that it is unable to bind to acetylcholine receptors O modifies acetyscholine receptors so that they bind acetylcholine stronger than tubocuranne O removes acetylchone receptors from the end-plate GE < Bu of 8 HEE Next >