Neurobiology (Neuroscience) — MCQs

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1. The basic functional unit of the nervous system is:





2. Which part of the neuron receives incoming signals?





3. The myelin sheath is primarily composed of:





4. The junction between two neurons is called:





5. Which ion is most important for action potential depolarization?





6. The resting membrane potential of a typical neuron is approximately:





7. Nodes of Ranvier are important for:





8. The brain region responsible for balance and coordination is:





9. The hippocampus is mainly involved in:





10. The blood-brain barrier is formed by:





11. The neurotransmitter acetylcholine is degraded by:





12. Which neurotransmitter is most associated with mood regulation?





13. The sympathetic nervous system is part of the:





14. The occipital lobe is primarily responsible for:





15. Which glial cells produce myelin in the central nervous system?





16. Schwann cells myelinate axons in the:





17. The neurotransmitter GABA is:





18. Which ion triggers neurotransmitter release at the synapse?





19. The medulla oblongata regulates:





20. The largest part of the human brain is:





21. Parkinson’s disease is caused by degeneration of neurons in:





22. The hypothalamus is responsible for regulating:





23. Long-term potentiation (LTP) is a process involved in:





24. Which lobe of the brain controls voluntary movement?





25. Which structure connects the two cerebral hemispheres?





26. The action potential travels fastest in:





27. Dopamine deficiency is associated with:





28. The parasympathetic nervous system uses which neurotransmitter?





29. Which brain structure acts as a relay station for sensory information?





30. The amygdala is mainly involved in:





31. Which ion channel is primarily responsible for repolarization of neurons?





32. Which brain imaging technique uses magnetic fields?





33. The language center (Broca’s area) is located in the:





34. Which type of receptor is activated by glutamate?





35. Which of the following is NOT a glial cell?





36. The brainstem includes:





37. Alzheimer’s disease is characterized by accumulation of:





38. The refractory period of a neuron ensures:





39. Sensory neurons carry signals:





40. Which part of the neuron transmits signals to other cells?





41. Which neurotransmitter is involved in the reward pathway?





42. The outermost protective layer of the brain is:





43. The EEG technique records:





44. Which brain structure regulates circadian rhythms?





45. The neurotransmitter most associated with learning and memory is:





46. Which region of the brain controls speech comprehension (Wernicke’s area)?





47. A bundle of axons in the central nervous system is called:





48. The main excitatory neurotransmitter in the central nervous system is:





49. Which brain part regulates autonomic functions like hunger and thirst?





50. Which disease is characterized by demyelination of neurons?





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