Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 41, Problem 2TYU
Summary Introduction
Introduction: Neurons are the basic unit of the nervous system that transmits the information. A neuron is the largest cell in the body consisting of the cell body, axon, dendrites, and terminal branches. Nerve impulses that are identified as stimuli are received and then transmitted forward to the CNS and then from CNS to the effectors by the neurons. The axon is covered by a layer of cells called myelin sheath, which helps in the improvement in signal transduction.
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Intro to Neuroscience Question
Explain your reasoning and why you chose that answer.:
Which of the following does NOT accurately describe medium spiny neurons (MSNs)?
Group of answer choices
They make a small number of synapses with many GPNs and a large number of synapses with a few GPNs
They are GABAergic and therefore inhibitory.
They are constitutively active to tonically inhibit the thalamus.
They are activated by inputs from the cortex.
All of the above are true
MAKE CONNECTIONS What effect would you expect if you depolarizedthe neurons in the VTA (see Concept 48.3)? Explain.
1. When a neuron is not generating an action potential, its membrane (the neurolemma) has a resting membrane potential. During rest, are gated Na+ and K+ channels (open? closed?)___________________________________.2. Only cells with “excitable membranes” can create action potentials. The two types of cells in the body that can do this are?___________________________________ and ___________________________________.3. Which event pushes a membrane further away from being able to generate another action potential: (hyperpolarization/depolarization /repolarization)?___________________________________.4. Short-lived, localized changes in polarity in the membrane of a neuron are called?___________________________________.5. During depolarization, which channels are open , Na+ or K+?___________________________________.
Chapter 41 Solutions
Biology (MindTap Course List)
Ch. 41.1 - Describe the processes involved in neural...Ch. 41.1 - Prob. 1CCh. 41.1 - Prob. 2CCh. 41.2 - Draw and label a typical neuron and give the...Ch. 41.2 - Prob. 3LOCh. 41.2 - Prob. 1CCh. 41.2 - Prob. 2CCh. 41.2 - Prob. 3CCh. 41.3 - Prob. 4LOCh. 41.3 - Prob. 5LO
Ch. 41.3 - Prob. 6LOCh. 41.3 - Prob. 1CCh. 41.3 - Prob. 2CCh. 41.3 - Prob. 3CCh. 41.3 - Prob. 4CCh. 41.4 - Prob. 7LOCh. 41.4 - Prob. 8LOCh. 41.4 - Prob. 9LOCh. 41.4 - Prob. 1CCh. 41.4 - Prob. 2CCh. 41.4 - How are EPSPs produced? IPSPs?Ch. 41.5 - Prob. 10LOCh. 41.5 - Prob. 1CCh. 41.5 - Prob. 2CCh. 41.5 - Prob. 3CCh. 41.6 - Prob. 11LOCh. 41.6 - Prob. 1CCh. 41 - Test Your Understanding Know and Comprehend 1....Ch. 41 - Prob. 2TYUCh. 41 - Test Your Understanding Know and Comprehend 3....Ch. 41 - Saltatory conduction (a) requires more energy than...Ch. 41 - Receptors for serotonin and many other...Ch. 41 - A presynaptic neuron in the cerebrum transmits...Ch. 41 - VISUALIZE Describe the action taking place at each...Ch. 41 - Prob. 8TYUCh. 41 - Prob. 9TYUCh. 41 - Prob. 10TYUCh. 41 - Prob. 11TYUCh. 41 - Prob. 12TYUCh. 41 - Prob. 13TYU
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