Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Chapter 7, Problem 28RA
Explain what is meant by long-term potentiation and discuss the significance of this process. What may account for LTP and what role might nitric oxide play?
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What type of synaptic potential (if any; be sure to indicate if any modification is occurring as well) would occur if:
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List the steps involved in an action potential moving from the axon terminal of the pre-synaptic neuron to the dendrites of the post-synaptic neuron.
Explain how the process is different in individuals affected with Parkinson's disease.
Chapter 7 Solutions
Human Physiology
Ch. 7 - Draw a neuron, label its parts, and describe the...Ch. 7 - Distinguish between sensory neurons, motor...Ch. 7 - Describe the structure of the neurilemma, and...Ch. 7 - Explain how myelin sheaths are formed in the CNS....Ch. 7 - Explain what is meant by the blood-brain barrier....Ch. 7 - Define the terms depolarization and...Ch. 7 - Prob. 4bCPCh. 7 - Describe how gating of Na+andK+ in the axon...Ch. 7 - Prob. 5aCPCh. 7 - Prob. 5bCP
Ch. 7 - Prob. 6aCPCh. 7 - Describe the location of neurotransmitters within...Ch. 7 - Describe the sequence of events by which action...Ch. 7 - Explain how chemically regulated channels differ...Ch. 7 - Prob. 8CPCh. 7 - Prob. 9aCPCh. 7 - Prob. 9bCPCh. 7 - Prob. 10CPCh. 7 - Prob. 11CPCh. 7 - Prob. 12aCPCh. 7 - Prob. 12bCPCh. 7 - Prob. 13aCPCh. 7 - Prob. 13bCPCh. 7 - Prob. 14aCPCh. 7 - Describe the mechanism of action of glycine and...Ch. 7 - Give examples of endogenous opioid polypeptides,...Ch. 7 - Prob. 15bCPCh. 7 - Prob. 16CPCh. 7 - Prob. 17aCPCh. 7 - Prob. 17bCPCh. 7 - Prob. 17cCPCh. 7 - Prob. 1RACh. 7 - Prob. 2RACh. 7 - Prob. 3RACh. 7 - Prob. 4RACh. 7 - Repolarization of an axon during an action...Ch. 7 - As the strength of a depolarizing stimulus to an...Ch. 7 - Prob. 7RACh. 7 - Which of these is not a characteristic of synaptic...Ch. 7 - Prob. 9RACh. 7 - Prob. 10RACh. 7 - Prob. 11RACh. 7 - Prob. 12RACh. 7 - Prob. 13RACh. 7 - Prob. 14RACh. 7 - Prob. 15RACh. 7 - Prob. 16RACh. 7 - Prob. 17RACh. 7 - Which of these may be produced by the action of...Ch. 7 - Prob. 19RACh. 7 - In a step-by-step manner, explain how the...Ch. 7 - Prob. 21RACh. 7 - Prob. 22RACh. 7 - Prob. 23RACh. 7 - Prob. 24RACh. 7 - Once an EPSP is produced in a dendrite, how does...Ch. 7 - Prob. 26RACh. 7 - List the endogenous opioids in the brain and...Ch. 7 - Explain what is meant by long-term potentiation...Ch. 7 - Prob. 29RACh. 7 - Prob. 30RACh. 7 - Prob. 31RACh. 7 - Prob. 32RACh. 7 - Prob. 33RACh. 7 - Explain the nature of the endocannabinoids....Ch. 7 - Prob. 35RACh. 7 - Prob. 36RACh. 7 - Prob. 37RACh. 7 - Prob. 38RACh. 7 - Prob. 39RACh. 7 - Use the figure below (from figure 7.34) to answer...
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- Explain long-term potentiation: the steps, the role of neurotransmitters, and the ultimate result.arrow_forwardlist at least eight ways in which the effectiveness of synapses may be altered and explain each pointarrow_forwardBriefly describe how silent glutamatergic synapses become activated during long term potentiation, describing all of the key neurotransmitters and their post-synaptic receptors and events that give rise to the process.arrow_forward
- What is inhibitory synapse ? Prepare the figure of excitatorysynapse ?arrow_forwardthe bacterium clostridium tetani produce a toxin called tetanospasmin, the causative agent os the disease tetanus. the toxin prevents the release of inhibitory transmitters in the CNS and so blocks the resulting IPSPs they would normally generate. what are some of the functions of inhibitory synapses? considering this what symptoms would you expect from the disease tetanus, and why? ( hint: imagine trying to stand up if all of the muscles in your lower limb contracted at the same time.)arrow_forwardNervous system functions that directly employ acetylcholine neurotransmitters are referred to as cholinergic. Drugs that might be therapeutic in treating the symptoms of dopamine loss in Parkinson’s disease could include multiple choice 1 dopaminergic agonists and cholinergic antagonists. dopaminergic antagonists and cholinergic antagonists. dopaminergic antagonists and cholinergic agonists. dopaminergic agonists and cholinergic agonists. 2. From the information provided, drugs used to treat Parkinson’s disease symptoms will act at which location? multiple choice 2 The globus pallidus The substantia nigra The striatum 3. Which of the following might be therapeutic in the treatment of Parkinson’s disease symptoms? multiple choice 3 all of these choices listed may be therapeutic increasing dopamine receptor responsiveness monoamine oxidase inhibition increasing dopamine release decreasing dopamine…arrow_forward
- Compare (consider both similarities and differences), contrast, and give the physiological significance of the following pairs of terms: electrical and chemical synapses absolute refractory period vs. relative refractory periodarrow_forwardHow can 5-HT2a activation be linked to dream-like experiences and hallucinations, but serotonin is low during REM sleep? Is it that although serotonin is low, of what is activated is the 5-HT2a receptor?arrow_forwardPhenytoin (sodium channel blocker) and ethosuximide (calcium channel blocker) are anti-seizure drugs that stop seizures from happening. These drugs work by inhibiting electrical impulses (action potentials) from occurring. Explain the importance of sodium and calcium channels on a neuron and and the reasons why action potentials do not occur when these channels are inhibited. Be sure to include the phases of an action potential, the channels involved, and the importance of an action potential. Be detailed in your explanationarrow_forward
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