Please Help With Questions 2 3 4 7 Thank You 1 (176.61 KiB) Viewed 92 times
2. Discuss the process of activation in the neuromuscular junction. Indicate how the neurotransmitter is released, bound and recycled back to the presynaptic terminal. Explain how an anticholinergic pesticide would affect this transmission. 3. Discuss what defines a chemical as a 'neurotransmitter' or a 'hormone'. Give detailed examples to support your point. Also show examples where the same chemical can be either. 4. Beta cells of the endocrine pancreas are depolarized when they are stimulated to release insulin. Using a diagram explain this process. Also explain why insulin is needed for tissues to take up blood glucose.
7. Mr Jones is hospitalised with cardiac problems. Somehow a medical mix-up occurs and Mr Jones is infused with a K+ -enhanced intravenous solution that was meant for another patient who is taking potassium-wasting diuretics (i.e, drugs that cause excessive loss of potassium from the body in urine). Mr Jones potassium levels are normal before the IV is administered. What do you think will happen to Mr Jones' resting membrane potentials? What will happen to his neurons ability to generate Aps?
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