BIOLOGY:CONCEPTS+INVEST.-CONNECT ACCESS
5th Edition
ISBN: 9781260542233
Author: Hoefnagels
Publisher: MCG
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Textbook Question
Chapter 26.3, Problem 5MC
What prevents action potentials from spreading in both directions along an axon?
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Chapter 26 Solutions
BIOLOGY:CONCEPTS+INVEST.-CONNECT ACCESS
Ch. 26.1 - Prob. 1MCCh. 26.1 - Prob. 2MCCh. 26.1 - Prob. 3MCCh. 26.2 - Prob. 1MCCh. 26.2 - Where is the myelin sheath located?Ch. 26.2 - Prob. 3MCCh. 26.2 - What are the functions of each of the three...Ch. 26.3 - Describe the forces that maintain the distribution...Ch. 26.3 - Prob. 2MCCh. 26.3 - Prob. 3MC
Ch. 26.3 - Prob. 4MCCh. 26.3 - What prevents action potentials from spreading in...Ch. 26.3 - Prob. 6MCCh. 26.3 - How do myelin and the nodes of Ranvier speed...Ch. 26.4 - Describe the structure of a synapse.Ch. 26.4 - Prob. 2MCCh. 26.4 - Prob. 3MCCh. 26.4 - Prob. 4MCCh. 26.5 - Prob. 1MCCh. 26.5 - Prob. 2MCCh. 26.5 - Prob. 3MCCh. 26.5 - Prob. 4MCCh. 26.6 - Prob. 1MCCh. 26.6 - Prob. 2MCCh. 26.6 - Prob. 3MCCh. 26.6 - List some structures that protect the central...Ch. 26.6 - Prob. 5MCCh. 26.7 - The researchers conducted a behavioral experiment...Ch. 26.7 - Prob. 2MCCh. 26 - Some cells of the central nervous system are...Ch. 26 - Prob. 2MCQCh. 26 - What event triggers an action potential? a....Ch. 26 - Prob. 4MCQCh. 26 - Prob. 5MCQCh. 26 - Prob. 6MCQCh. 26 - Prob. 7MCQCh. 26 - Damage to the surface tissue of the spinal cord...Ch. 26 - Prob. 9MCQCh. 26 - Describe some invertebrate nervous systems. Why do...Ch. 26 - Prob. 2WIOCh. 26 - Prob. 3WIOCh. 26 - Prob. 4WIOCh. 26 - What is the connection between the threshold...Ch. 26 - Write a nonbiological analogy for resting...Ch. 26 - Prob. 7WIOCh. 26 - Sketch a synapse: label the axon and synaptic...Ch. 26 - Describe the events that occur at a synapse when a...Ch. 26 - Prob. 10WIOCh. 26 - Prob. 11WIOCh. 26 - Cerebral palsy is a nervous system disorder that...Ch. 26 - Traumatic brain injury can occur when a person...Ch. 26 - Prob. 14WIOCh. 26 - Prob. 15WIOCh. 26 - Prob. 16WIOCh. 26 - Prob. 1PITCh. 26 - Prob. 2PITCh. 26 - PULL IT TOGETHER 4. Acid the somatic, autonomic,...
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- What is a graded potential? Where does a graded potential start in a neuron? Do graded potentials always result in an action potential? Are all graded potentials depolarizing? Why or why not? Where are action potentials started in a neuron and what is the threshold potential to do so in a neuron?arrow_forwardWhat takes place during the repolarization and hyperpolarization phases of an action potential?arrow_forwardList the differences between graded potentials and action potentials?arrow_forward
- Starting with the action of a neurotransmitter at the postsynaptic end of a neuron, what happens to generate an action potential to a second neuron?arrow_forwardWhat causes depolarization of a neuron membrane potential?arrow_forwardWhat takes place during the depolarization phase of an action potential? How is it an example of a positive feedback loop?arrow_forward
- What is the difference between action potentials, generator potentials, and receptor potentials?arrow_forwardAction potential conduction velocity is higher in a myelinated axon compared to an unmyelinated axon because … Question 1 options: a) the diameter of a myelinated axon is greater than the diameter of an unmyelinated axon. b) a myelinated axon has more voltage-gated sodium channels than an unmyelinated axon. c) less axonal membrane is exposed to the ECF in a myelinated axon compared to an unmyelinated axon. d) answers (a) and (b) are both correct; answer (c) is incorrect e) answers (a), (b) and (c) are all correctarrow_forwardHow can only positive ions result in depolarization and repolarization of the membrane during an action potential?arrow_forward
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