Quiz 3 With Answers - Human Physiology 215 Fall 2015...

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Human Physiology – 215 Fall 2015 Lecture Quiz-3 Dr. Najma Javed Total Points = 30. Multiple Choice: For each question there is only one correct answer. Circle the Correct answer and indicate the letter on the left panel of each question. 1. Sequence the following events of synaptic transmission correctly. 1. Neurotransmitter diffuses across cleft. 2. Calcium induces exocytosis of neurotransmitter. 3. Permeability of postsynaptic membrane altered. 4. Ion channels open. 5. Neurotransmitter binds to receptor. a. 1, 2, 3, 5, 4 b. 1, 4, 3, 2, 5 c. 2, 1, 5, 4, 3 d. 3, 1, 4, 5, 2 e. 5, 4, 3, 1, 2 2. An IPSP is 3. Binding of an excitatory neurotransmitter to a postsynaptic neuron causes a. voltage-gated Na + channels open b. voltage-gated K + channels open c. chemically-gated Na + channels open d. voltage-gated Cl - channels open e. chemically-gated Cl - channels open 4. Temporal summation on a postsynaptic neuron would occur when
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