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Functional Organization of Nervous Tissue $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Introduction FINAL ROUND Cells Membrane Potential Action.

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Presentation on theme: "Functional Organization of Nervous Tissue $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Introduction FINAL ROUND Cells Membrane Potential Action."— Presentation transcript:

1 Functional Organization of Nervous Tissue $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Introduction FINAL ROUND Cells Membrane Potential Action Potential Synapse

2 Introduction: $100 Question This is NOT a part of the peripheral nervous system: a. cranial nerve b. ganglion c. spinal cord d. spinal nerve BACK TO GAME ANSWER

3 Introduction: $100 Answer This is NOT a part of the peripheral nervous system: a. cranial nerve b. ganglion c. spinal cord d. spinal nerve BACK TO GAME

4 Introduction: $200 Question This extensive network of axons is located outside of the CNS: a. ganglion b. plexus c. sensory receptor d. spinal cord BACK TO GAME ANSWER

5 Introduction: $200 Answer This extensive network of axons is located outside of the CNS: a. ganglion b. plexus c. sensory receptor d. spinal cord BACK TO GAME

6 Introduction: $300 Question This portion of the motor division of the nervous system conducts action potentials from the central nervous system to skeletal muscle fibers. a. afferent b. autonomic c. somatic d. sympathetic BACK TO GAME ANSWER

7 Introduction: $300 Answer This portion of the motor division of the nervous system conducts action potentials from the central nervous system to skeletal muscle fibers. a. afferent b. autonomic c. somatic d. sympathetic BACK TO GAME

8 Introduction: $400 Question The cell bodies of sensory neurons are located in the dorsal root ganglion near the spinal cord. True/False BACK TO GAME ANSWER

9 Introduction: $400 Answer The cell bodies of sensory neurons are located in the dorsal root ganglion near the spinal cord. True/False BACK TO GAME

10 Introduction: $500 Question __________ pairs of cranial nerves originate from the brain, and __________ pairs of spinal nerves originate from the spinal cord. a. two, twelve b. eight, twenty-four c. twelve, thirty-one d. fifteen, thirty-six e. sixteen, thirty-eight BACK TO GAME ANSWER

11 Introduction: $500 Answer __________ pairs of cranial nerves originate from the brain, and __________ pairs of spinal nerves originate from the spinal cord. a. two, twelve b. eight, twenty-four c. twelve, thirty-one d. fifteen, thirty-six e. sixteen, thirty-eight BACK TO GAME

12 Cells: $100 Question These cells conduct action potentials from one neuron to another within the CNS: a. sensory (afferent) neurons b. motor (efferent) neurons c. interneurons (association) neurons d. bipolar neurons BACK TO GAME ANSWER

13 Cells: $100 Answer These cells conduct action potentials from one neuron to another within the CNS: a. sensory (afferent) neurons b. motor (efferent) neurons c. interneurons (association) neurons d. bipolar neurons BACK TO GAME

14 Cells: $200 Question Axons terminate by branching to form small extensions with enlarged ends which are called this: a. dendrites b. neuron cell bodies c. presynaptic terminals d. postsynaptic membranes e. axon hillocks BACK TO GAME ANSWER

15 Cells: $200 Answer Axons terminate by branching to form small extensions with enlarged ends which are called this: a. dendrites b. neuron cell bodies c. presynaptic terminals d. postsynaptic membranes e. axon hillocks BACK TO GAME

16 Cells: $300 Question These cell types produce and help circulate cerebrospinal fluid: a. astrocytes b. microglia c. ependymal cells d. Schwann cells e. oligodendrocytes BACK TO GAME ANSWER

17 Cells: $300 Answer These cell types produce and help circulate cerebrospinal fluid: a. astrocytes b. microglia c. ependymal cells d. Schwann cells e. oligodendrocytes BACK TO GAME

18 Cells: $400 Question These statements about unipolar neurons are all true except: a. most are sensory neurons b. have a single process extending from the cell body c. located in the eye and nasal cavity d. have no dendrites BACK TO GAME ANSWER

19 Cells: $400 Answer These statements about unipolar neurons are all true except: a. most are sensory neurons b. have a single process extending from the cell body c. located in the eye and nasal cavity d. have no dendrites BACK TO GAME

20 Cells: $500 Question This statement best describes the myelin sheath: a. made of Schwann cells(neurolemmocytes) b. covering surrounding an axon c. provides insulation from other axons d. helps conduct the action potential more rapidly e. all are true BACK TO GAME ANSWER

21 Cells: $500 Answer This statement best describes the myelin sheath: a. made of Schwann cells (neurolemmocytes) b. covering surrounding an axon c. provides insulation from other axons d. helps conduct the action potential more rapidly e. all are true BACK TO GAME

22 Membrane Potential: $100 Question Compared to the outside of the resting plasma membrane, the inside surface of the membrane is this: a. positively charged b. electrically neutral c. negatively charged d. continuously reversing so that it is positive one second and negative the next BACK TO GAME ANSWER

23 Membrane Potential: $100 Answer Compared to the outside of the resting plasma membrane, the inside surface of the membrane is this: a. positively charged b. electrically neutral c. negatively charged d. continuously reversing so that it is positive one second and negative the next BACK TO GAME

24 Membrane Potential: $200 Question Because of the sodium-potassium pump, there are: a. more K + outside the cell than inside and more Na + inside the cell than outside b. more K + inside the cell than outside and Na + outside the cell than inside c. more K + and Na inside the cell than outside d. more K + and Na outside the cell than inside BACK TO GAME ANSWER

25 Membrane Potential: $200 Answer Because of the sodium-potassium pump, there are: a. more K + outside the cell than inside and more Na + inside the cell than outside b. more K + inside the cell than outside and Na + outside the cell than inside c. more K + and Na inside the cell than outside d. more K + and Na outside the cell than inside BACK TO GAME

26 Membrane Potential: $300 Question The resting membrane potential results when the tendency for these ions to diffuse out of the cell is balanced by their attraction to opposite charges inside the cell: a. Na + b. K + c. Cl - d. negatively charged proteins e. Ca 2+ BACK TO GAME ANSWER

27 Membrane Potential: $300 Answer The resting membrane potential results when the tendency for these ions to diffuse out of the cell is balanced by their attraction to opposite charges inside the cell: a. Na + b. K + c. Cl - d. negatively charged proteins e. Ca 2+ BACK TO GAME

28 Membrane Potential: $400 Question The resting membrane potential of nerve cells due to the electric charge difference across the plasma membranes is approximately -85mv. True/False BACK TO GAME ANSWER

29 Membrane Potential: $400 Answer The resting membrane potential of nerve cells due to the electric charge difference across the plasma membranes is approximately -85mv. True/False BACK TO GAME

30 Membrane Potential: $500 Question Hyperpolarization, which is an increase in membrane potential, can be caused by this: a. opening of Cl - gated channels b. opening of Ca 2+ gated channels c. opening of Na + gated channels d. increase of extracellular K + BACK TO GAME ANSWER

31 Membrane Potential: $500 Answer Hyperpolarization, which is an increase in membrane potential, can be caused by this: a. opening of Cl - gated channels b. opening of Ca 2+ gated channels c. opening of Na + gated channels d. increase of extracellular K + BACK TO GAME

32 Action Potential: $100 Question The following are characteristics of action potentials except: a. all-or-none b. caused by graded potentials reaching threshold c. stimulus strength determines the magnitude d. depolarization is followed by repolarization BACK TO GAME ANSWER

33 Action Potential: $100 Answer The following are characteristics of action potentials except: a. all-or-none b. caused by graded potentials reaching threshold c. stimulus strength determines the magnitude d. depolarization is followed by repolarization BACK TO GAME

34 Action Potential: $200 Question Depolarization occurs because more Na + diffuse into the cell than K + diffuse out of it. True/False BACK TO GAME ANSWER

35 Action Potential: $200 Answer Depolarization occurs because more Na + diffuse into the cell than K + diffuse out of it. True/False BACK TO GAME

36 Action Potential: $300 Question This best describes the absolute refractory period: a. limits how many action potentials can be produced during a given period of time b. prevents an action potential from starting another action potential at the same point on the plasma membrane c. is the period of time when a strong stimulus can initiate a second action potential. d. both a and b. e. all of the above BACK TO GAME ANSWER

37 Action Potential: $300 Answer This best describes the absolute refractory period: a. limits how many action potentials can be produced during a given period of time b. prevents an action potential from starting another action potential at the same point on the plasma membrane c. is the period of time when a strong stimulus can initiate a second action potential d. both a and b e. all of the above BACK TO GAME

38 Action Potential: $400 Question During saltatory conduction, action potentials jump from this: a. one astrocyte to another b. an axon to a dendrite c. one internode to another d. one node of Ranvier to another e. one microglia cell to another BACK TO GAME ANSWER

39 Action Potential: $400 Answer During saltatory conduction, action potentials jump from this: a. one astrocyte to another b. an axon to a dendrite c. one internode to another d. one node of Ranvier to another e. one microglia cell to another BACK TO GAME

40 Action Potential: $500 Question If the duration of the absolute refractory period of a nerve cell is 1millisecond (ms), this many action potentials are generated by a maximal stimulus in 1 second: a. 1 b. 10 c. 100 d BACK TO GAME ANSWER

41 Action Potential: $500 Answer If the duration of the absolute refractory period of a nerve cell is 1millisecond (ms), this many action potentials are generated by a maximal stimulus in 1 second: a. 1 b. 10 c. 100 d BACK TO GAME

42 Synapse: $100 Question These are all part of a chemical synapse except: a. presynaptic terminal b. synaptic cleft c. postsynaptic membrane d. connexons BACK TO GAME ANSWER

43 Synapse: $100 Answer These are all part of a chemical synapse except: a. presynaptic terminal b. synaptic cleft c. postsynaptic membrane d. connexons BACK TO GAME

44 Synapse: $200 Question Acetylcholinesterase, monoamine oxidase (MAO), and catechol-O-methyltransferase are this: a. neurotransmitters b. enzymes that break down neurotransmitters c. enzymes that act as neuromodulators d. enzymes that could produce an EPSP e. substances that could produce an IPSP BACK TO GAME ANSWER

45 Synapse: $200 Answer Acetylcholinesterase, monoamine oxidase (MAO), and catechol-O-methyltransferase are this: a. neurotransmitters b. enzymes that break down neurotransmitters c. enzymes that act as neuromodulators d. enzymes that could produce an EPSP e. substances that could produce an IPSP BACK TO GAME

46 Synapse: $300 Question This characteristic can be produced by an IPSP: a. local hyperpolarization b. decreased excitability of neuron c. increased permeability of postsynaptic membrane to K+ and Cl- ions d. all of these BACK TO GAME ANSWER

47 Synapse: $300 Answer This characteristic can be produced by an IPSP: a. local hyperpolarization b. decreased excitability of neuron c. increased permeability of postsynaptic membrane to K+ and Cl- ions d. all of these BACK TO GAME

48 Synapse: $400 Question When two action potentials arrive in very close succession at a single presynaptic terminal, this action occurs: a. an IPSP is produced b. the second action potential cancels the first c. spatial summation occurs d. temporal summation occurs BACK TO GAME ANSWER

49 Synapse: $400 Answer When two action potentials arrive in very close succession at a single presynaptic terminal, this action occurs: a. an IPSP is produced b. the second action potential cancels the first c. spatial summation occurs d. temporal summation occurs BACK TO GAME

50 Synapse: $500 Question This combination represents a convergent pathway in the nervous system: a. 1 presynaptic neuron synapses with 4 postsynaptic neurons b. 1 presynaptic neuron synapses with 1 postsynaptic neuron c. 3 presynaptic neurons synapse with 1 postsynaptic neuron d. an afferent neuron synapses with an association neuron BACK TO GAME ANSWER

51 Synapse: $500 Answer This combination represents a convergent pathway in the nervous system: a. 1 presynaptic neuron synapses with 4 postsynaptic neurons b. 1 presynaptic neuron synapses with 1 postsynaptic neuron c. 3 presynaptic neurons synapse with 1 postsynaptic neuron d. an afferent neuron synapses with an association neuron BACK TO GAME

52 FINAL ROUND Question This kind of nerve fiber would conduct action potentials the FASTEST: a. unmyelinated nerve fibers b. type A fibers c. type B fibers d. type C fibers BACK TO GAME ANSWER

53 FINAL ROUND Answer This kind of nerve fiber would conduct action potentials the FASTEST: a. unmyelinated nerve fibers b. type A fibers c. type B fibers d. type C fibers BACK TO GAME


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