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donut-shaker donut-shaker
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12 years ago
I'm still stuck on this question for exercise 3, activity 8.

8-1 If you added more sodium to the extracellular solution, could the sodium substitute for the missing calcium?
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Staff Member
12 years ago
1. It is unlikely that sodium could substitute for calcium since the addition of magnesium blocked the calcium channels.

2. Botulinum toxin blocks the release of acetylcholine from the axon terminal. It is used in cosmetic procedures because it results in paralysis of the muscles that are contracting and causing the wrinkles.
- Master of Science in Biology
- Bachelor of Science
donut-shaker Author
wrote...
12 years ago
Thank you!
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