Biology: Science For Life With Physiology Plus Mastering Biology With Pearson Etext -- Access Card Package (6th Edition) (what's New In Biology)
6th Edition
ISBN: 9780134794679
Author: BELK
Publisher: PEARSON
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Chapter 24, Problem 7LTB
Summary Introduction
Introduction:
The nerve impulse is also known as an action potential. An action potential can be defined as the changes in the electrical potential of the neuron due to the movement of the ions. It is propagated like an
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A neuron receiving a large enough signal, a resting potential changes and produces electrical impulse called ___________.
When a neuron fires an action potential, the information travels through the axon,the dendrites, and the cell body, but not in that order. Place these three structures in the correct order.
The change in the electrical balance between the intra- and extra-cellular fluid that occurs when a neuron sends a message is called the _________________ potential.
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Chapter 24 Solutions
Biology: Science For Life With Physiology Plus Mastering Biology With Pearson Etext -- Access Card Package (6th Edition) (what's New In Biology)
Ch. 24 - Prob. 1LTBCh. 24 - How do sensory, motor, and interneurons differ?Ch. 24 - What are the general senses?Ch. 24 - Which brain structure controls language, memory,...Ch. 24 - Prob. 5LTBCh. 24 - Prob. 6LTBCh. 24 - Prob. 7LTBCh. 24 - Neurotransmitters. ___________. are electrical...Ch. 24 - The effects of a neurotransmitter could be...Ch. 24 - Prob. 10LTB
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- Stellate cells initially process sensory input to the cortex, whereas pyramidal cells send fibers from the cortex to terminate on efferent motor neurons. (True or false)arrow_forwardWhen 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.arrow_forwardA neuron responds to adequate stimulation with _______, a type of self-propagating signal.arrow_forward
- Neurons contain ________, which can receive signals from other neurons. a. axons b. mitochondria c. dendrites d. Golgibodiesarrow_forwardsometimes the terms neuron and nerve are mistakenly used interchangeably. explain the difference between the two structures.arrow_forwardElectrical current can flow directly from one neuron into other across this type of synapse due to the presence of ___ . Select the option that fills the blank correctly : 1.Neurotransmitter 2.Synaptic cleft 3.Gap junctions 4.Postsynaptic membranearrow_forward
- An autonomic neuroeffector junction Has the same structure as a somatic motor neuroeffector junction Uses only acetylcholine as a neurotransmitter Releases neurotransmitter from varicosities Does not require calcium for the release of the neurotransmitterarrow_forwardWhen they are not being stimulated, neurons have an electrical charge across their membranes called the resting potential. This potential is______ charged inside. When a neuron receives a sufficiently large stimulus, and reaches a potential called the_______ , it produces an action potential. This causes the neuron to become_____ charged inside.arrow_forwardWhich of the following neuron structure - function parings is incorrect? Axon - extension of cell body Dendrite - sensitive to chemical and electrical signals Cell body - contains cell nucleus Axon - transmits signals to neighboring cells Dendrite - unbranched receptor sites of signals from other neuronsarrow_forward
- During the resting state, a neuron is: polarized with sodium ions outside the cell and potassium ions inside the cell  restoring the ionic conditions utilizing the sodium-potassium pump  depolarizing and generating an action potential  propagating the action potential  repolarizing as potassium ions diffuse out of the cellarrow_forwardWhich of the following would occur if a neuron was experimentally stimulated simultaneously at both ends? The action potentials would pass in the middle and travel to the opposite ends The action potentials would stop as they meet in the middle. The stronger action potential would override the weaker action potential. Summation would occur when the action potentials meet in the middle, resulting in a larger action potential.arrow_forwardWhat events in a neuron membrane occur slowly when threshold potential is reached?  Opening of K+ channel activation gate  Closing of Na+ channel inactivation gate  Opening of the Na+ voltage-gated channel activation gate  Closing of Cl- voltage gated channels  Closing of K+ inactivation gate (More than one answer may be correct, please help in answering)arrow_forward
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