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卡片总数: 4 张•内容版本: v4•公开卡包•更新时间: 8/1/2026
卡片预览 (4 张)
#1
正面 (问题)
all or nothing law
背面 (解答)
The all-or-nothing law is an important principle that describes how nerve cells either fire at full strength or do not depending on if threshold is reached
#2
正面 (问题)
one action potential takes _ milliseconds refractory period takes
背面 (解答)
5 msec 1 msec
#3
正面 (问题)
what happens to residual neuruotransmitters
背面 (解答)
they are either destroyed by enzyme named acetylcholinesterase or reabsorbed back into axon or presynaptic membrane
#4
正面 (问题)
Explain how inhibitory and excitant neurons work
背面 (解答)
Inhibitory neurons send neurotransmitters that open potassium channels to create hyperpolarization to stop the action potential creating more stimulus required while excitatory neurons open sodium channels to depolarize