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Biology-Related Homework Help Anatomy and Physiology Topic started by: jc9193 on Jun 24, 2013



Title: What is the effect of lidocaine on the generation of AP? Explain why.
Post by: jc9193 on Jun 24, 2013
Activity 2
1) Can hyperpolarized graded potential lead to an AP in the axon terminal? Explain why.
Activity 3
2) Did a stimulus stronger than threshold cause an AP of higher amplitude?
Answer:
Activity 4
3) What is the effect of lidocaine on the generation of AP? Explain why.
Answer: Blocks voltage- gated Na+ channels. Hard to reach, reduces further potential.( I'm not 100 percent sure of this answer)
Activity 6
4) Stimulus voltage of 30 mV generated an AP frequency of     Hz; stimulus voltage of 45 mV generated an AP frequency of   Hz.
Answer: 0.161 and
Activity 7
5) Which of the three nerves had the fastest conduction velocity? Explain why.
Answer: A fiber ; thick, heavy myelinated , larger diameter and propagate faster.

Thank You so much for all of your help!


Title: What is the effect of lidocaine on the generation of AP? Explain why.
Post by: bio_man on Jun 24, 2013
Activity 4
3) What is the effect of lidocaine on the generation of AP? Explain why.
Answer: Blocks voltage- gated Na+ channels. Hard to reach, reduces further potential.( I'm not 100 percent sure of this answer)
Activity 6
4) Stimulus voltage of 30 mV generated an AP frequency of     Hz; stimulus voltage of 45 mV generated an AP frequency of   Hz.
Answer: 0.161 and
Activity 7
5) Which of the three nerves had the fastest conduction velocity? Explain why.
Answer: A fiber ; thick, heavy myelinated , larger diameter and propagate faster.

Was this asked in another thread you created already?

Those appear answered :-\


Title: What is the effect of lidocaine on the generation of AP? Explain why.
Post by: jc9193 on Jun 25, 2013
I need help with these questions!!! the questions answered were incorrect


Title: What is the effect of lidocaine on the generation of AP? Explain why.
Post by: robertling on Jun 25, 2013
Activity 4
3) What is the effect of lidocaine on the generation of AP? Explain why.
Answer: Blocks voltage- gated Na+ channels. Hard to reach, reduces further potential.( I'm not 100 percent sure of this answer)

Calcium channels could possibly substitute for sodium channels to provide an influx of cation.


Title: What is the effect of lidocaine on the generation of AP? Explain why.
Post by: jc9193 on Jun 25, 2013
Located in activity 3 :Did a stimulus stronger than threshold cause an action potential of higher amplitude?

Located in activity 3 :Can hyperpolarized graded potential lead to an AP in the axon hillock? explain why.


need help with theses from physioex exercise 3 Neurophysiology of Nerve Impulses.