Which of the following are TRUE of inhibitory but not excitatory postsynaptic potentials? (Select all that...
Which of the following are TRUE of inhibitory but not excitatory postsynaptic potentials? (Select all that apply.)
A. The membrane potential will be more negative than normal.
B. Potassium channels may open.
C. The postsynaptic cell will be less likely to have an action potential.
D. Calcium channels may open.
Homework Answers
Inhibitory postsynaptic potentials:
1. It is a temporary hyperpolarization.
2. It is generated by the flow of negatively charged ions into postsynaptic cell. This implies membrane potential may be more negative.
3. When an inhibitory presynaptic cell, connected to the dendrite, fires an action potential which is less likely to generate an action potential.
4. Membrane becomes more permeable to K+ ions and Cl-. This implies K+ Channels may open.
So, The answer is A, B and C.
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Which of the following are TRUE of inhibitory but not excitatory
postsynaptic potentials? (Select all that...
Which of the following are TRUE of inhibitory but not excitatory postsynaptic potentials? (Select all that...
Which of the following are TRUE of inhibitory but not excitatory postsynaptic potentials? (Select all that apply.) A. The membrane potential will be more negative than normal. B. Potassium channels may open. C. The postsynaptic cell will be less likely to have an action potential. D. Calcium channels may open.
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