NSCI quizzes exam 1 questions with correct answers

What is synaptic integration? Answer B. A process by which multiple synaptic potentials combine within one postsynaptic neuron Most IPSPs are attributable to the Answer B. opening of chloride channels. Inhibitory postsynaptic potentials differ from excitatory postsynaptic potentials most significantly in their Answer B. direction of membrane polarization. Miniature postsynaptic potentials are produced Answer C. by spontaneous release of neurotransmitter. Which of the following statements about EPSPs in the central nervous system is false? Answer C. EPSPs are often caused by the influx of Cl- into the neuron Which of the following statements about length constant are false? Answer C. The length constant is an index of how far hyperpolarization spread down a dendrite or axon. Modulation of synaptic transmission Answer A. works through activation of g-protein-coupled receptors Whether or not an EPSP contributes to the action potential depends on: Answer A. the number of coactive excitatory synapses