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UTSC NROB61 Neurophysiology: Midterm Exam (Units 1-7) Questions with Correct Answers 50 questions 1. Which ion's gradient is most important for the resting potential? A. Na+ B. Ca2+ C. Mg2+ D. K+ Correct Answer: D. K+ Rationale: Resting membranes are mostly K+-permeable. 2. Which signal decreases in amplitude as it spreads along the membrane? A. Propagated action potential B. Graded (local) potential C. Saltatory action potential D. Regenerative calcium spike in an ax

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9 páginas

Escrito en 2026/2027

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UTSC NROB61 Neurophysiology: Exam 2 - Questions with Correct Answers 50 questions 1. Divergence in neural circuits means: A. Many neurons converge on one neuron B. Neurons fire in isolation C. One neuron sends output to many neurons D. Signals travel backward Correct Answer: C. One neuron sends output to many neurons Rationale: Convergence is the opposite. 2. An electrode placed inside a neuron records:

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9 páginas

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Exam (elaborations) UTSC NROB61 Neurophysiology: Exam 3 - Questions with Correct Answers 3 Exam (elaborations) UTSC NROB61 Neurophysiology: Final Exam (Comprehensive)- Questions with Correct Answers 4 Exam (elaborations) UTSC NROB61 Neurophysiology: Midterm Exam (Units 1-7) Questions with Correct Answers 5 Exam (elaborations) UTSC NROB61 Neurophys

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UTSC NROB61 Neurophysiology: Final Exam (Comprehensive)- Questions with Correct Answers 4 Exam (elaborations) UTSC NROB61 Neurophysiology: Midterm Exam (Units 1-7) Questions with Correct Answers 5 Exam (elaborations) UTSC NROB61 Neurophysiology: Exam 1 - Questions with Correct Answers

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5 artículos

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UTSC NROB61 Neurophysiology: Practice Test 2 (Units 8-13) Questions with Correct Answers 50 questions 1. Neuromuscular junctions are reliable because: A. Quantal content is high, giving a large safety factor B. Release probability is near zero C. They use electrical synapses D. Only one vesicle is released Correct Answer: A. Quantal content is high, giving a large safety factor Rationale: The EPP exceeds threshold. 2. The immediate trigger for synaptic vesicle fusion is

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9 páginas

Escrito en 2026/2027

Grado A+

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UTSC NROB61 Neurophysiology: Exam 1 - Questions with Correct Answers 50 questions 1. Invertebrate preparations such as the leech are useful because: A. Neurons are large and individually identifiable B. They have no synapses C. They lack ion channels D. They have no behavior Correct Answer: A. Neurons are large and individually identifiable

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9 páginas

Escrito en 2026/2027

Grado A+

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UTSC NROB61 Neurophysiology: Practice Test 1 (Units 1-7) Questions with Correct Answers 50 questions 1. Which glial cells form myelin in the peripheral nervous system? A. Oligodendrocytes B. Astrocytes C. Schwann cells D. Microglia Correct Answer: C. Schwann cells Rationale: Oligodendrocytes myelinate in the CNS. 2. Which property most clearly distinguishes neurons from most other cells? A. Having a nucleus B. Using ATP C. Having a plasma membrane D. Excitable membranes that gener...

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9 páginas

Escrito en 2026/2027

Grado A+

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UTSC NROB61 Neurophysiology: Final Exam (Comprehensive)- Questions with Correct Answers 50 questions 1. Mutations that disrupt channel function and cause disease are called: A. Synaptopathies only B. Channelopathies C. Myopathies only D. Gliopathies Correct Answer: B. Channelopathies Rationale: E.g., some epilepsies and long QT syndrome. 2. Why do K+ channels exclude the smaller Na+ ion? A. Na+ is larger than K+ B. Na+ has a negative charge C. Na+ binds ATP D. Na+ cannot be stabiliz...

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9 páginas

Escrito en 2026/2027

Grado A+

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UTSC NROB61 Neurophysiology: Exam 3 - Questions with Correct Answers 50 questions 1. Which glial cells regulate extracellular K+ and neurotransmitter uptake? A. Microglia B. Ependymal cells C. Schwann cells D. Astrocytes Correct Answer: D. Astrocytes Rationale: Astrocytes buffer K+ and take up glutamate. 2. Depolarization refers to: A. Membrane potential becoming more negative B. No change in potential C. Membrane potential becoming less negative D. Return to rest after hyperpolari...

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9 páginas

Escrito en 2026/2027

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