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Nervous System Histology and Action Potentials Overview

Explore the histology of the nervous system and membrane potentials. Learn about neuroglial cells, synapses, and ion movements in neurons.

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Nervous System Histology and Action Potentials Overview

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  1. Chapter 11 - Fundamentals of the Nervous System and Nervous Tissue Nervous System Histology Membrane and Action Potentials Neurotransmitters and Integration Synapses Mixed Bag $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 FINAL ROUND

  2. Nervous System Histology: $100 Question • All of the following are neuroglial cells except: • a. Schwann cells. • b. ependymal cells. • c. microglia. • d. perikaryons. ANSWER BACK TO GAME

  3. Nervous System Histology: $100 Answer • All of the following are neuroglial cells except: • a. Schwann cells. • b. ependymal cells. • c. microglia. • d. perikaryons. BACK TO GAME

  4. Nervous System Histology: $200 Question • Nissl bodies are found ______________. • a. in the neuroglia • b. in the neuronal axons • c. in the neuronal cell bodies • d. in the neuronal dendrites ANSWER BACK TO GAME

  5. Nervous System Histology: $200 Answer • Nissl bodies are found ______________. • a. in the neuroglia • b. in the neuronal axons • c. in the neuronal cell bodies • d. in the neuronal dendrites BACK TO GAME

  6. Nervous System Histology: $300 Question • Synaptic knobs are found ___________. • a. in the neuroglia • b. in the neuronal axons • c. in the neuronal cell bodies • d. in the neuronal dendrites ANSWER BACK TO GAME

  7. Nervous System Histology: $300 Answer • Synaptic knobs are found ___________. • a. in the neuroglia • b. in the neuronal axons • c. in the neuronal cell bodies • d. in the neuronal dendrites BACK TO GAME

  8. Nervous System Histology: $400 Question • Myelin sheaths in the CNS are produced by the ________. • a. astrocytes • b. microglia • c. oligodendrocytes • d. Schwann cells ANSWER BACK TO GAME

  9. Nervous System Histology: $400 Answer • Myelin sheaths in the CNS are produced by the ________. • a. astrocytes • b. microglia • c. oligodendrocytes • d. Schwann cells BACK TO GAME

  10. Nervous System Histology: $500 Question • Neuroglial cells that line the ventricles of the brain are the ______. • a. astrocytes • b. ependymal cells • c. microglia • d. Schwann cells ANSWER BACK TO GAME

  11. Nervous System Histology: $500 Answer • Neuroglial cells that line the ventricles of the brain are the ______. • a. astrocytes • b. ependymal cells • c. microglia • d. Schwann cells BACK TO GAME

  12. Membrane and Action Potentials: $100 Question • If a membrane has a resting transmembrane potential of –90 mV, it is said to be _________. • a. depolarized • b. polarized • c. hyperpolarized • d. unresponsive ANSWER BACK TO GAME

  13. Membrane and Action Potentials: $100 Answer • If a membrane has a resting transmembrane potential of –90 mV, it is said to be _________. • a. depolarized • b. polarized • c. hyperpolarized • d. unresponsive BACK TO GAME

  14. Membrane and Action Potentials: $200 Question • At rest, a cell will have more ______ ions in the cytoplasm than outside the cell. • a. sodium • b. chloride • c. potassium • d. calcium ANSWER BACK TO GAME

  15. Membrane and Action Potentials: $200 Answer • At rest, a cell will have more ______ ions in the cytoplasm than outside the cell. • a. sodium • b. chloride • c. potassium • d. calcium BACK TO GAME

  16. Membrane and Action Potentials: $300 Question • During membrane repolarization, there is a decrease in the membrane permeability to which ion? • a. Potassium • b. Sodium • c. Calcium • d. Both potassium and • sodium ANSWER BACK TO GAME

  17. Membrane and Action Potentials: $300 Answer • During membrane repolarization, there is a decrease in the membrane permeability to which ion? • a. Potassium • b. Sodium • c. Calcium • d. Both potassium and • sodium BACK TO GAME

  18. Membrane and Action Potentials: $400 Question • A membrane maintains its resting potential mainly due to _________. • a. the sodium-potassium pump • b. chemically gated sodium channels • c. potassium leak channels • d. calcium leak channels ANSWER BACK TO GAME

  19. Membrane and Action Potentials: $400 Answer • A membrane maintains its resting potential mainly due to _________. • a. the sodium-potassium pump • b. chemically gated sodium channels • c. potassium leak channels • d. calcium leak channels BACK TO GAME

  20. Membrane and Action Potentials: $500 Question • Which channels are open during the absolute refractory period of a neuron? • a. Potassium • b. Sodium • c. Calcium • d. All of the above ANSWER BACK TO GAME

  21. Membrane and Action Potentials: $500 Answer • Which channels are open during the absolute refractory period of a neuron? • a. Potassium • b. Sodium • c. Calcium • d. All of the above BACK TO GAME

  22. Synapses: $100 Question • The space between the presynaptic and postsyaptic membranes is called the __________. • a. synaptic cleft • b. neurotransmitter • c. synaptic delay • d. synaptic vesicle ANSWER BACK TO GAME

  23. Synapses: $100 Answer • The space between the presynaptic and postsyaptic membranes is called the __________. • a. synaptic cleft • b. neurotransmitter • c. synaptic delay • d. synaptic vesicle BACK TO GAME

  24. Synapses: $200 Question • The presynaptic neuron releases neurotransmitters in response to an influx of _______ ions. • a. sodium • b. potassium • c. calcium • d. sodium and potassium ANSWER BACK TO GAME

  25. Synapses: $200 Answer • The presynaptic neuron releases neurotransmitters in response to an influx of _______ ions. • a. sodium • b. potassium • c. calcium • d. sodium and potassium BACK TO GAME

  26. Synapses: $300 Question • IPSPs cause the postsynaptic membrane to become more permeable to ________. • a. calcium • b. sodium • c. potassium • d. chloride ANSWER BACK TO GAME

  27. Synapses: $300 Answer • IPSPs cause the postsynaptic membrane to become more permeable to ________. • a. calcium • b. sodium • c. potassium • d. chloride BACK TO GAME

  28. Synapses: $400 Question • __________ has occurred when a neuron is stimulated by more than one terminal. • a. Temporal summation • b. Spatial summation • c. Synaptic delay • d. Synaptic potentiation ANSWER BACK TO GAME

  29. Synapses: $400 Answer • __________ has occurred when a neuron is stimulated by more than one terminal. • a. Temporal summation • b. Spatial summation • c. Synaptic delay • d. Synaptic potentiation BACK TO GAME

  30. Synapses: $500 Question • Generation of an action potential can be inhibited by all of the following except: • a. IPSPs. • b. presynaptic inhibition. • c. depolarization. • d. hyperpolarization. ANSWER BACK TO GAME

  31. Synapses: $500 Answer • Generation of an action potential can be inhibited by all of the following except: • a. IPSPs. • b. presynaptic inhibition. • c. depolarization. • d. hyperpolarization. BACK TO GAME

  32. Neurotransmitters and Integration:$100 Question • Which of the following is not a class of neurotransmitters? • a. Peptides • b. Amino acids • c. Biogenic amines • d. Acetylcholinesterases ANSWER BACK TO GAME

  33. Neurotransmitters and Integration: $100 Answer • Which of the following is not a class of neurotransmitters? • a. Peptides • b. Amino acids • c. Biogenic amines • d. Acetylcholinesterases BACK TO GAME

  34. Neurotransmitters and Integration: $200 Question • The natural opiates of our body are the: • a. biogenic amines. • b. GABA. • c. endorphins. • d. histamines. ANSWER BACK TO GAME

  35. Neurotransmitters and Integration: $200 Answer • The natural opiates of our body are the: • a. biogenic amines. • b. GABA. • c. endorphins. • d. histamines. BACK TO GAME

  36. Neurotransmitters and Integration: $300 Question • A neuronal circuit where incoming information is spread around or amplified is ________. • a. converging • b. diverging • c. reverberating • d. parallel after-discharge ANSWER BACK TO GAME

  37. Neurotransmitters and Integration:$300 Answer • A neuronal circuit where incoming information is spread around or amplified is ________. • a. converging • b. diverging • c. reverberating • d. parallel after-discharge BACK TO GAME

  38. Neurotransmitters and Integration: $400 Question • Neuronal circuits involved in rhythmic activities such as breathing and arm swinging are _________. • a. converging • b. diverging • c. reverberating • d. parallel after-discharge ANSWER BACK TO GAME

  39. Neurotransmitters and Integration: $400 Answer • Neuronal circuits involved in rhythmic activities such as breathing and arm swinging are _________. • a. converging • b. diverging • c. reverberating • d. parallel after-discharge BACK TO GAME

  40. Neurotransmitters and Integration:$500 Question • Dopamine and serotonin are examples of which class of neurotransmitters? • a. Peptides • b. Purines • c. Biogenic amines • d. Acetylcholinesterases ANSWER BACK TO GAME

  41. Neurotransmitters and Integration:$500 Answer • Dopamine and serotonin are examples of which class of neurotransmitters? • a. Peptides • b. Purines • c. Biogenic amines • d. Acetylcholinesterases BACK TO GAME

  42. Mixed Bag:$100 Question • All of the following are found in the PNS except: • a. spinal nerves. • b. cranial nerves. • c. myelinated axons. • d. microglia. ANSWER BACK TO GAME

  43. Mixed Bag:$100 Answer • All of the following are found in the PNS except: • a. spinal nerves. • b. cranial nerves. • c. myelinated axons. • d. microglia. BACK TO GAME

  44. Mixed Bag: $200 Question • Association neurons are always _________. • a. found in the PNS • b. multipolar • c. sensory • d. efferent ANSWER BACK TO GAME

  45. Mixed Bag:$200 Answer • Association neurons are always _________. • a. found in the PNS • b. multipolar • c. sensory • d. efferent BACK TO GAME

  46. Mixed Bag: $300 Question • The nodes of Ranvier are found _______. • a. in the CNS only • b. on dendrites • c. on the neuroglia • d. on myelinated axons ANSWER BACK TO GAME

  47. Mixed Bag:$300 Answer • The nodes of Ranvier are found _______. • a. in the CNS only • b. on dendrites • c. on the neuroglia • d. on myelinated axons BACK TO GAME

  48. Mixed Bag: $400 Question • The neurilemma is found on the _______________. • a. dendrites of the CNS • b. dendrites of the PNS • c. axons of the CNS • d. axons of the PNS ANSWER BACK TO GAME

  49. Mixed Bag: $400 Answer • The neurilemma is found on the _______________. • a. dendrites of the CNS • b. dendrites of the PNS • c. axons of the CNS • d. axons of the PNS BACK TO GAME

  50. Mixed Bag: $500 Question • All of the following are true of action potentials except: • a. they exhibit an all-or-none response. • b. they are inhibited by IPSPs. • c. they need a threshold stimulus. • d. they travel more slowly on • myelinated fibers. ANSWER BACK TO GAME

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