Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 35, Problem 27CTQ
How does myelin aid propagation of an action potential along an axon? How do the nodes of Ranvier help this process?
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Describe how following a threshold stimulus, a action potential is carried along an unmyelinated axon? How does this differ from an action potential passing through a mylenated axon?
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Chapter 35 Solutions
Biology 2e
Ch. 35 - Figure 35.3 Which of the following statements is...Ch. 35 - Figure 35.11 Potassium channel blockers, such as...Ch. 35 - Figure 35.26 Which of the following statements is...Ch. 35 - Neurons contain _____ which can receive_____...Ch. 35 - A(n)______neuron has one axon and one____ dendrite...Ch. 35 - Glia that provide myelin for neurons in the brain...Ch. 35 - Meningitis is a viral or bacterial infection of...Ch. 35 - For a neuron to fire an action potential, its...Ch. 35 - After an action potential, the opening of...Ch. 35 - What is the term for protein channels that connect...
Ch. 35 - Which of the following molecules is not involved...Ch. 35 - Thelobe contains the visual cortex frontal...Ch. 35 - Theconnects the two cerebral hemispheres. limbic...Ch. 35 - Neurons in Thecontrol motor reflexes. thalamus...Ch. 35 - Phineas Gage was a 19th century railroad worker...Ch. 35 - Activation of the sympathetic nervous system...Ch. 35 - Where are parasympathetic preganglionic cell...Ch. 35 - ______ is released by motor nerve endings onto...Ch. 35 - Parkinson’s disease is a caused by the...Ch. 35 - __________ medications are often used to treat...Ch. 35 - Strokes are often caused by. neurodegeneration...Ch. 35 - Why is it difficult to identify the cause of many...Ch. 35 - Why do many patients with neurodevelopmentaJ...Ch. 35 - How are neurons similar to other cells? How are...Ch. 35 - Multiple sclerosis causes demyelination of axons...Ch. 35 - Many neurons have only a single axon, but many...Ch. 35 - How does myelin aid propagation of an action...Ch. 35 - What are the main steps in chemical...Ch. 35 - Describe how long-term potentiation can lead to a...Ch. 35 - What methods can be used to determine the function...Ch. 35 - What are the main functions of the spinal cord?Ch. 35 - Alzheimer’s disease involves three of the four...Ch. 35 - What are the main differences between the...Ch. 35 - What are the main functions of the sensory somatic...Ch. 35 - Describe how the sensory-somatic nervous system...Ch. 35 - Scientists have suggested that the autonomic...Ch. 35 - What are the main symptoms of Alzheimer’s disease?Ch. 35 - What are possible treatments for patients with...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- How might the disease multiple sclerosis affect transmission of action potentials along a myelinated neuron?arrow_forwardWhat does the dendrite do and where is it located on a neuron? What is a soma? What do we call the soma? What does the axon do and where is it located on the neuron? What is the responsibility of the myelin sheath?arrow_forwardWhat happens at the nodes of Ranvier in a myelinated axon?arrow_forward
- How is an action potential propagated along the axon towards the synaptic end bulb?arrow_forwardWhy is saltatory conduction along a myelinated axon faster than continuous conduction along an unmyelinated axon?arrow_forwardWhich component of the neuron sends action potentials away from the cell body?arrow_forward
- Why does an action potential move in an all-or-nothing fashion down the length of an axon without stopping?arrow_forwardWhat is a local current? How do local currents cause thepropagation of action potentials in unmyelinated axons?arrow_forwardWhat 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_forward
- How is an action potential propagated down an axon?arrow_forwardNeurons, particularly those in the brain, receive multiple excitatory and inhibitory signals. What is the name of the extension of the neuron at which such signals are received? How does the neuron integrate these signals to determine whether or not to generate an action potential?arrow_forwardwhat are Axons coated with this electrically insulating substance have higher conduction velocities compared to neurons without it?arrow_forward
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