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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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 ___________.
A/An _____ synapse is formed when a presynaptic neuron synapses with the cell body of a postsynaptic neuron
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 neuron responds to adequate stimulation with _______, a type of self-propagating signal.arrow_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_forwardAn 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_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_forwardNeurons that convey information to the CNS are called sensory, or ___________ , neurons.arrow_forward
- An 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_forwardNeuron(key terms: dendrites, axons, electrical signals, communication) The function (or job) of a neuron isarrow_forwardAfter an action potential, the opening of voltage-gated ________ channels and the inactivation of sodium channels, cause the membrane to return to its resting membrane potential. disodium potassium calcium chloride acetylcholinearrow_forward
- ___________ are called “downers” because they depressthe central nervous system.arrow_forwardTrue or False: All input to a neuron occurs via synapses on the neuron's dendritesarrow_forwardNeurons release _____________from the axon terminus in order to locally depolarize the postsynaptic membrane of skeletal muscles (sarcolemma).arrow_forward
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