Chapter 11 - Fundamentals of the Nervous System and Nervous Tissue

1. Chapter 11 - Fundamentals of the Nervous System and Nervous Tissue Nervous System Histology Membrane and Action Potentials Neurons Mixed Bag Membrane Potential $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 overshoot of the resting membrane potential causing hyperpolarization? • 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 overshoot of the resting membrane potential causing hyperpolarization? • a. Potassium • b. Sodium • c. Calcium • d. All of the above BACK TO GAME

22. Neuron$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. Neuron$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. Neuron:$200 Question • The receiving branches of the neuron are the: • Axon • Soma • Dendrites • Synaptic terminals ANSWER BACK TO GAME

25. Neuron:$200 Answer • The receiving branches of the neuron are the: • Axon • Soma • Dendrites • Synaptic terminals BACK TO GAME

26. Neuron:$300 Question • The part of the neuron that causes gray matter to have its gray color is the: • Soma • Dendrites • Nucleus • Nissl bodies ANSWER BACK TO GAME

27. Neurons:$300 Answer • The part of the neuron that causes gray matter to have its gray color is the: • Soma • Dendrites • Nucleus • Nissl bodies BACK TO GAME

28. Neurons:$400 Question • Which part of the neuron generates an action potential? • Soma • Dendrites • axon • Axon hillock ANSWER BACK TO GAME

29. Neurons:$400 Answer • Which part of the neuron generates an action potential? • Soma • Dendrites • axon • Axon hillock BACK TO GAME

30. Neurons:$500 Question • Wrap the axons of neurons in the PNS • Oligodendrocytes • Astrocytes • Schwann cells • Ependymal cells ANSWER BACK TO GAME

31. Neurons:$500 Answer • Wrap the axons of neurons in the PNS • Oligodendrocytes • Astrocytes • Schwann cells • Ependymal cells BACK TO GAME

32. Membrane potential:$100 Question • What is the extracellular cation? • Potassium • Sodium • Calcium • chloride ANSWER BACK TO GAME

33. Membrane potential:$100 Answer • What is the extracellular cation? • Potassium • Sodium • Calcium • chloride BACK TO GAME

34. Membrane potential: $200 Question • ______________ ion channels open during depolarization and these ions flow _______________ . • Potassium; out • Potassium; in • Sodium; out • Sodium; in ANSWER BACK TO GAME

35. Membrane potential:$200 Answer • ______________ ion channels open during depolarization and these ions flow _______________ . • Potassium; out • Potassium; in • Sodium; out • Sodium; in BACK TO GAME

36. Membrane potential: $300 Question • During repolarization these ion gated channels are open. • Sodium • Potassium • Chloride • calcium ANSWER BACK TO GAME

37. Membrane potential:$300 Answer • During repolarization these ion gated channels are open. • Sodium • Potassium • Chloride • calcium BACK TO GAME

38. Membrane potential: $400 Question • These are “all or none”: • Graded potentials • Neurotransmitter release • Action potentials • All of the above ANSWER BACK TO GAME

39. Membrane potential: $400 Answer • These are “all or none”: • Graded potentials • Neurotransmitter release • Action potentials • All of the above BACK TO GAME

40. Membrane potential:$500 Question • These are created by postsynaptic dendritic membranes and weaken as they travel along the membrane toward the axon hillock. • Action potentials • Resting membrane potentials • Graded potentials • All of the above ANSWER BACK TO GAME

41. Membrane potential:$500 Answer • These are created by postsynaptic dendritic membranes and weaken as they travel along the membrane toward the axon hillock. • Action potentials • Resting membrane potentials • Graded potentials • All of the above 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 and motor 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 • During the absolute refractory period along an axon membrane of a neuron, • Potassium gates are open and K+ is diffusing down the gradient. • Sodium gates are closed and Na+ is diffusing down the gradient. • The neuron is unable to respond to a stimulus of any intensity. • The membrane is most sensitive to stimuli. ANSWER BACK TO GAME

49. Mixed Bag: $400 Answer • During the absolute refractory period along an axon membrane of a neuron, • Potassium gates are open and K+ is diffusing down the gradient. • Sodium gates are closed and Na+ is diffusing down the gradient. • The neuron is unable to respond to a stimulus of any intensity. • The membrane is most sensitive to stimuli. 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. The travel down axons. • c. they need a threshold stimulus. • d. they travel more slowly on • myelinated fibers. ANSWER BACK TO GAME