d. contain strands of fibrous actin. e. are the thickest proteins in muscle. 6. When an action potential reaches the presynaptic terminal‚ a. calcium ions diffuse into the presynaptic terminal through voltage-gated ion channels. b. acetylcholine moves into the presynaptic terminal. c. a local potential is generated in the presynaptic terminal. d. ligand-gated ion channels in the presynaptic terminal are opened. e. nothing else happens. 7. In excitation-contraction coupling
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Bio 210 Vanlinluck | Tetanus | “LOCKJAW” | | Cong Le | 12/3/2012 | Abstract: Tetanus is a severe infection causes by Clostridium tetani‚ a spore-forming anaerobic bacterium. This disease affects many people in the developing-countries where the immunization is not really available. On the other hand‚ tetanus is very rare condition in developed countries like America. Clostridium tetani has all the characteristics of the Clostridium genus. After entering the human wounds‚ this organism
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BEH 225 ALL DQ’S WEEKS ONE THROUGH NINE BEH 225 ALL DQ’S WEEKS ONE THROUGH NINE WEEK 1 DQ 1 Consider the statement “psychology has a long past but a short history.” What do you think this means? In your opinion‚ which person or perspective has had the most influence on the growth of psychology? That statement means that psychology has been around for a long time but was never socially accepted and practiced until later. The author is commenting ironically upon the fact that millions of persons
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gastrointestinal tract and directed to innervate smooth muscle cells. The effector neurons of the myenteric plexus may be excitatory or inhibitory according to the substances released in contact with smooth muscle cells. Excitatory neurons release acetylcholine‚ substance P‚ and other tachykinins‚ while inhibitory neurons release vasoactive intestinal peptide and nitric oxide‚ which cause relaxation of smooth muscle cells As a result of this organization‚ the enteric nervous system acts like a semi-autonomous
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COGNITIVE NEUROSCIENCE \ Cognitive Neuroscience •Field of study linking the brain and other aspects of the nervous system to cognitive processing ‚ and ultimately‚ to behavior. Cognitive Neuroscience • Localization of function – refers to the specific areas of the brain that control specific skills or behaviours. • Nervous System – basis for our ability to perceive‚ adapt & interact with the world around us. – receive‚ process‚ and respond Human Brain •Consumes 20% of body’s
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STUDY QUESTIONS FOR TEST 3 (Major concepts)—CHAPTERS 5‚ 6‚ 7 This study guide does not include everything you need to know for the exam. It an overview of main topics that I thought were important in lecture—make sure you’ve studied your book‚ completed the questions at the end of each chapter‚ answered all of the study guide questions‚ and taken the practice exam a few times! I would recommend either writing out the answers or‚ if you’re studying with someone else‚ talk through these questions.
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Neurotransmitters- Chemical messengers that cross the synaptic gaps between neurons. Dopamine- Influences movement‚ learning‚ attention‚ & emotion Serotonin- Affects mood‚ hunger‚ sleep‚ and arousal. Norepinephrine- Helps control alertness & arousal Acetylcholine- Enables muscle action‚ learning‚ & memory Erikson’s Stages: -Infancy (to 1 year)- Trust vs. Mistrust; if needs are dependably met‚ infants develop a sense of basic trust -Toddlerhood (1to 3 years)- Autonomy vs. shame and doubt; toddlers learn
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Name___________________________________ Biology 2401 Quiz Fundamentals of the Nervous System Ch 11 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) What is the role of acetylcholinesterase? A) amplify or enhance the effect of ACh B) destroy ACh a brief period after its release by the axon endings C) act as a transmitting agent D) stimulate the production of serotonin 1) 2) The term central nervous system refers to the ________
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When we’re walking down a typical city street these days‚ it’s hard not to bump into people who are so absorbed in their smartphones and tablet computers that they’re almost one with their gadgets‚ oblivious to the world around them. This burgeoning digital dependence may conjure up vaguely creepy images of the hapless citizenry in "The Matrix" movies‚ strapped into chairs and wired into an illusion that takes the place of reality. But that’s taking the negative view. To neuroscientists‚ psychologists
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Question 1 Question text Neurons _____. Select one: a. transmit neural impulses. b. support and nourish glial cells. c. each have only one dendrite. d. are one kind of neurotransmitter. Question 2 Question text A synapse is the _____. Select one: a. same as the action potential. b. junction where neurons communicate with one another. c. chemical that travels from one neuron to another. d. signal that travels from one neuron to another. Question 3 Question text
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