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QuizMoz offers one of the Internet's largest collection of quizzes for you to tease your brain and pit your wits against the experienced QuizMoz quiz masters. Go ahead and find out what you know about yourself and the world around you. Best of luck!! Coverage : All it takes is two minutes to take the Nervous System - unit IV (part 2) Quiz and find out how much you know about the quiz and the characters in the quiz. Quiz Created by: rosa stachniak Creation Date: 13 December 2011  Nervous System - unit IV (part 2) Discussion Forum 1.  In the CNS and Maintain blood-brain barrier (B.B.B.) . They also have feet that wrap around capillaries. a. astrocytes b. microglia c. oligodendrocytes d. ependymal cells Please provide appropriate updations Ques In the CNS and Maintain blood-brain barrier (B.B.B.) . They also have feet that wrap around capillaries. a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 2.  Removes debris, waste and pathogens by phagocytosis. a. microglia b. astrocytes c. oligodendrocytes d. ependymal cells Please provide appropriate updations Ques Removes debris, waste and pathogens by phagocytosis. a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 3.  Slow, over unmyelinated axons. a. continuous conduction b. all or none law c. saltatory conduction d. myelination Please provide appropriate updations Ques Slow, over unmyelinated axons. a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 4.  Stimulus alters resting membrane potential to -55 mV (threshold) AP. a. myelination b. saltatory conduction c. all or none law (AP/impulse at the Node of Ranvier) d. continuous conduction Please provide appropriate updations Ques Stimulus alters resting membrane potential to -55 mV (threshold) AP. a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 5.  Inside neuron is more negative than outside (-70 mV), Na+/K+ pump moves 3 Na+ to outside 2 K+ to inside uses ATP, Large negative proteins stuck inside cell and create the cells negative potential, Na+ and K+ channels are closed. More sodium on the outside and more potasium on the outside. a. refractory period b. depolarization c. repolarization d. resting membrane potential Please provide appropriate updations Ques Inside neuron is more negative than outside (-70 mV), Na+/K+ pump moves 3 Na+ to outside 2 K+ to inside uses ATP, Large negative proteins stuck inside cell and create the cells negative potential, Na+ and K+ channels are closed. More sodium on the outside and more potasium on the outside. a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 6.  Undershoots and can't fire yet. Ion gradient must be re-established. K+ & Na+ gates are closed, Na+ & K+ pump is redistributing...3 for 2 ratio - Na+ ions out and K+ ions in (back to correct location). a. 3rd event - refractory period b. 1st event - depoloration c. 2nd event - repolarization Please provide appropriate updations Ques Undershoots and can't fire yet. Ion gradient must be re-established. K+ & Na+ gates are closed, Na+ & K+ pump is redistributing...3 for 2 ratio - Na+ ions out and K+ ions in (back to correct location). a. b. c. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 7.  +30 mV to -70 mV. K+ gate opens and K+ out of cell at +30 mV, Na+ gate is closed. a. 3rd event - repolarization b. 2nd event - repolarization c. 1st event - depoloration Please provide appropriate updations Ques +30 mV to -70 mV. K+ gate opens and K+ out of cell at +30 mV, Na+ gate is closed. a. b. c. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 8.  AP arrives at synaptic terminal (bulb): Ca+2 channel opens, Ca+2 diffuse into cell, enzymes activated, neurotransmitter is released into synapse by exocytosis now in synaptic cleft. a. True b. False Please provide appropriate updations Ques AP arrives at synaptic terminal (bulb): Ca+2 channel opens, Ca+2 diffuse into cell, enzymes activated, neurotransmitter is released into synapse by exocytosis now in synaptic cleft. a. b. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 9.  Neurotransmitter attaches to receptor exciting or inhibiting postsynaptic neuron, separation of neurotransmitter to be recycled, vesicles without neurotransmiters are transported back to cell body, a. post synaptic b. presynaptic Please provide appropriate updations Ques Neurotransmitter attaches to receptor exciting or inhibiting postsynaptic neuron, separation of neurotransmitter to be recycled, vesicles without neurotransmiters are transported back to cell body, a. b. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 10.  EPSP (excitatory post synaptic potential): a. Depolarization (Na+ channels open), turns cell "on", activates b. Hyperpolarization, turns cell "off", deactivates Please provide appropriate updations Ques EPSP (excitatory post synaptic potential): a. b. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 11.  Excitatory chemicals: a. Acetylcholine, Dopamine, Norepinephrine b. GABA, Serotonin, Endorphins Please provide appropriate updations Ques Excitatory chemicals: a. b. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 12.  Inhibit in brain valium is similar a. Serotonin b. GABA c. Dopamine d. Endorphins Please provide appropriate updations Ques Inhibit in brain valium is similar a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. 13.  Inhibit pain morphine is similar, runner' high. a. Serotonin b. GABA c. Dopamine d. Endorphins Please provide appropriate updations Ques Inhibit pain morphine is similar, runner' high. a. b. c. d. Your Name Please describe the changes made by you Please provide appropriate updations Your Name Please comment why is this inappropriate. Think you know more about this quiz!   Please enter your Name and what you would like to tell everyone about Nervous System - unit IV (part 2)  Name: Think you know more about Nervous System - unit IV (part 2) and would like others to know too? Whether its a great fact, a joke, a personal experience or an interesting anecdote, please share it with all the human beings on planet earth. Your contribution will help keep QuizMoz a free site for all.    (Optional)  (average submission size - 5 to 10 lines) Nervous System - unit IV (part 2) Discussion Forum Know the Latest News about Nervous System - unit IV (part 2)! What others think about Nervous System - unit IV (part 2) By: Reema on 5/20/2013    Great Quiz! 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