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Chapter 11 - Fundamentals of the Nervous System and Nervous Tissue Nervous System Histology Membrane and Action Potentials Neurons Membrane Potential 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 ANSWER sodium BACK TO GAME 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 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 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 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 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 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 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 Neuron: $200 Question The receiving branches of the neuron are the: a. Axon b. Soma c. Dendrites d. Synaptic terminals ANSWER BACK TO GAME Neuron: $200 Answer The receiving branches of the neuron are the: a. Axon b. Soma c. Dendrites d. Synaptic terminals BACK TO GAME Neuron: $300 Question The part of the neuron that causes gray matter to have its gray color is the: a. Soma b. Dendrites c. Nucleus d. Nissl bodies ANSWER BACK TO GAME Neurons: $300 Answer The part of the neuron that causes gray matter to have its gray color is the: a. Soma b. Dendrites c. Nucleus d. Nissl bodies BACK TO GAME Neurons: $400 Question Which part of the neuron generates an action potential? a. Soma b. Dendrites c. axon d. Axon hillock ANSWER BACK TO GAME Neurons: $400 Answer Which part of the neuron generates an action potential? a. Soma b. Dendrites c. axon d. Axon hillock BACK TO GAME Neurons: $500 Question Wrap the axons of neurons in the PNS a. Oligodendrocytes b. Astrocytes c. Schwann cells d. Ependymal cells ANSWER BACK TO GAME Neurons: $500 Answer Wrap the axons of neurons in the PNS a. Oligodendrocytes b. Astrocytes c. Schwann cells d. Ependymal cells BACK TO GAME Membrane potential: $100 Question What is the extracellular cation? a. Potassium b. Sodium c. Calcium d. chloride ANSWER BACK TO GAME Membrane potential: $100 Answer What is the extracellular cation? a. Potassium b. Sodium c. Calcium d. chloride BACK TO GAME Membrane potential: $200 Question ______________ ion channels open during depolarization and these ions flow _______________ . a. Potassium; out b. Potassium; in c. Sodium; out d. Sodium; in ANSWER BACK TO GAME Membrane potential: $200 Answer ______________ ion channels open during depolarization and these ions flow _______________ . a. Potassium; out b. Potassium; in c. Sodium; out d. Sodium; in BACK TO GAME Membrane potential: $300 Question During repolarization these ion gated channels are open. a. Sodium b. Potassium c. Chloride d. calcium ANSWER BACK TO GAME Membrane potential: $300 Answer During repolarization these ion gated channels are open. a. Sodium b. Potassium c. Chloride d. calcium BACK TO GAME Membrane potential: $400 Question These are “all or none”: a. Graded potentials b. Neurotransmitter release c. Action potentials d. All of the above ANSWER BACK TO GAME Membrane potential: $400 Answer These are “all or none”: a. Graded potentials b. Neurotransmitter release c. Action potentials d. All of the above BACK TO GAME Membrane potential: $500 Question These are created by postsynaptic dendritic membranes and weaken as they travel along the membrane toward the axon hillock. a. Action potentials b. Resting membrane potentials c. Graded potentials d. All of the above ANSWER BACK TO GAME Membrane potential: $500 Answer These are created by postsynaptic dendritic membranes and weaken as they travel along the membrane toward the axon hillock. a. Action potentials b. Resting membrane potentials c. Graded potentials d. All of the above BACK TO GAME 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 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 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 Mixed Bag: $200 Answer Association neurons are always _________. a. found in the PNS b. multipolar c. sensory d. efferent BACK TO GAME 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 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 Mixed Bag: $400 Question During the absolute refractory period along an axon membrane of a neuron, a. Potassium gates are open and K+ is diffusing down the gradient. b. Sodium gates are closed and Na+ is diffusing down the gradient. c. The neuron is unable to respond to a stimulus of any intensity. d. The membrane is most sensitive toANSWER BACK TO GAME stimuli. Mixed Bag: $400 Answer During the absolute refractory period along an axon membrane of a neuron, a. Potassium gates are open and K+ is diffusing down the gradient. b. Sodium gates are closed and Na+ is diffusing down the gradient. c. The neuron is unable to respond to a stimulus of any intensity. d. The membrane is most sensitive to BACK TO GAME stimuli. 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 ANSWER myelinated fibers. BACK TO GAME Mixed Bag: $500 Answer 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. BACK TO GAME FINAL ROUND Question The small membrane-enclosed compartments that hold and release the neurotransmitter molecules from within the presynaptic neuron, are called ________________________ ANSWER BACK TO GAME FINAL ROUND Answer The small membrane-enclosed compartments that hold and release the neurotransmitter molecules from within the presynaptic neuron, are called ____synaptic vesicles________ BACK TO GAME