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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What happens at the nodes of Ranvier in a myelinated axon?
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?
How might the disease multiple sclerosis affect transmission of action potentials along a myelinated neuron?
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 does conduction along a myelinated fiber differ from conduction along an un-myelinated fiber?arrow_forwardOnce an EPSP is produced in a dendrite, how does it stimulate the production of an action potential at the axon hillock?arrow_forward. Myelinated axons are known to speed up the nerve impulse transmission. How does this happen?arrow_forward
- How can an EPSPs ability to stimulate action potential be enhanced?arrow_forwardUnmyelinated axons conduct action potentials without decrement, but when myelinated axons lose myelin in demyelinating diseases such as multiple sclerosis, conduction of action potentials is blocked. Why?arrow_forwardWhy is the cell unable to initiate another action potential if stimulated during the refractory period?arrow_forward
- Many neurons have only a single axon, but many terminals at the end of the axon. How does this end structure of the axon support its function?arrow_forwardHow different are theconcepts of action potential,resting potential andexcitation thresholdconcerning neurons?arrow_forwardDistinguish between saltatory nerve signal conduction in myelinated axons versus unmyelinatedarrow_forward
- Describe the propagation of an action potential. Contrast this eventin myelinated and unmyelinated axons?arrow_forwardDescribe how action potentials are conducted by unmyelinated nerve fibers. Why is saltatory conduction in myelinated fibers more rapid?arrow_forwardSometimes diverging circuits split into excitatory and inhibitory paths. When might such a circuit be required?arrow_forward
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