Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 13, Problem 3SQ
When action potentials arrive at a synapse between a neuron and another cell, they stimulate the release of molecules of a ________ that diffuse over to that cell.
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“Facilitation in a neuronal pool” refers to____________ .
At __________ synapses, neurotransmitters hyperpolarize the membrane, by making it more permeable to K+ or moving membrane potential away from threshold (hyperpolarizing), and making generation of an action potential less likely; these are inhibitory postsynaptic potentials (EPSPs).
A neuron receiving a large enough signal, a resting potential changes and produces electrical impulse called ___________.
Chapter 13 Solutions
Human Biology (MindTap Course List)
Ch. 13 - Explain the difference between a sensory neuron,...Ch. 13 - What are the functional zones of a motor neuron?Ch. 13 - Define an action potential.Ch. 13 - What is a synapse? Explain the difference between...Ch. 13 - Explain what happens during synaptic integration.Ch. 13 - Prob. 6RQCh. 13 - Prob. 7RQCh. 13 - The nervous system senses, interprets, and issues...Ch. 13 - A neuron responds to adequate stimulation with...Ch. 13 - When action potentials arrive at a synapse between...
Ch. 13 - In the simplest kind of reflex______, directly...Ch. 13 - The accelerating flow of _______ ions through...Ch. 13 - Prob. 6SQCh. 13 - Prob. 7SQCh. 13 - Cerebrospinal fluid _____. a. fills cavities and...Ch. 13 - Match each region of the central nervous system...Ch. 13 - Prob. 1CTCh. 13 - In newborns and premature babies, the bloodbrain...Ch. 13 - Prob. 3CT
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- A/An _____ synapse is formed when a presynaptic neuron synapses with the cell body of a postsynaptic neuronarrow_forwardThe change in the electrical balance between the intra- and extra-cellular fluid that occurs when a neuron sends a message is called the _________________ potential. action resting electrical synapticarrow_forwardGraded potentials and action potentials are both changes in membrane potential created by ion movement between the extracellular and intracellular fluids.arrow_forward
- An influx of positive sodium ions causes opening of the activation gates of voltage regulated sodium channels resulting in a further influx of positive sodium ions, and thus the initial stages of an action potential are regulated by ______ feedback.arrow_forwardStructurally a neuron may be anaxonic . These kinds of neurons are found in the ________.arrow_forwardNeuron(key terms: dendrites, axons, electrical signals, communication) This feature of the neuron helps it do its job becausearrow_forward
- Cells develop a ____________due to the separation of positive and negative charges across the plasma membrane. Regarding signal transduction in neurons.arrow_forwardAt a given synapse, the _____ neuron has neurotransmitter receptors.arrow_forwardAn influx of positive sodium ions eventually causes closing of the inactivation gates of voltage regulated sodium channels, stopping the influx of positive sodium ions, and thus the final stages of an action potential are regulated by _____ feedback.arrow_forward
- Neuron(key terms:dendrites, axo,electrical signals, communication) One important structure/feature of a neuron isarrow_forwardTwo excitatory synapses on a neuron fire at the same time as one inhibitory neuron. Each synapse comes from a different presynaptic neuron. Explain what happens at each synapse (in the post-synaptic neuron) and what determines whether this neuron will fire.arrow_forwardNeuron(key terms: dendrites, axons, electrical signals, communication) The function (or job) of a neuron isarrow_forward
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