ANATOMY & PHYSIOLOGY V1. W/CONNECT
15th Edition
ISBN: 9781259723384
Author: SALADIN
Publisher: MCG CUSTOM
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Chapter 12, Problem 3WWTS
Summary Introduction
Introduction:
Almost all living cells are polarized. The difference in charge across the membrane is known as the resting membrane potential. It is very less than the flashlight battery potential normally about -70 mV in a resting neuron that is unstimulated. The negative charge means that there are anions on the inside of the plasma membrane than the outside.
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The resting membrane potential of a neuron typically is 70 mV. What does this mean?
True or false and explain why. According to the Goldman equation, resting membrane potential of a neuron will become more positive than the typical -70 mV if concentration of extracellular Na is increased above the normal levels but the permeability of the membrane to Na+ is the same.
Neurons have a resting membrane potential of ___________________.
varying votage as type and composition of channels can differ between neurons.
theoretically the same votage because the ionic concentration is the same extracellularly and intracellularly for all neurons.
equal to the equillibrium potential for potassium.
directly opposing the equillibrium potential for sodium.
Chapter 12 Solutions
ANATOMY & PHYSIOLOGY V1. W/CONNECT
Ch. 12.1 - What is a receptor? Give two examples of...Ch. 12.1 - Distinguish between the central and peripheral...Ch. 12.1 - Prob. 3BYGOCh. 12.1 - What the nervous and endocrine systems have in...Ch. 12.1 - Three fundamental functions of the nervous system;...Ch. 12.1 - Differences between the central nervous system...Ch. 12.1 - The autonomic nervous system and its two divisionsCh. 12.2 - Sketch a multipolar neuron and label its...Ch. 12.2 - Explain the differences between a sensory neuron,...Ch. 12.2 - Prob. 6BYGO
Ch. 12.2 - Prob. 7BYGOCh. 12.2 - Three fundamental physiological properties of...Ch. 12.2 - Prob. 2AYLOCh. 12.2 - Prob. 3AYLOCh. 12.2 - Prob. 4AYLOCh. 12.2 - Ways in winch neurons transport substances between...Ch. 12.3 - Prob. 8BYGOCh. 12.3 - Prob. 9BYGOCh. 12.3 - Prob. 10BYGOCh. 12.3 - Six kinds of neuroglia; the structure and...Ch. 12.3 - Prob. 2AYLOCh. 12.3 - Prob. 3AYLOCh. 12.3 - The regeneration of a damaged nerve fiber; the...Ch. 12.4 - Prob. 11BYGOCh. 12.4 - Prob. 12BYGOCh. 12.4 - Prob. 13BYGOCh. 12.4 - Prob. 14BYGOCh. 12.4 - Prob. 15BYGOCh. 12.4 - Prob. 16BYGOCh. 12.4 - Prob. 17BYGOCh. 12.4 - Prob. 1AYLOCh. 12.4 - What an electrical current is, and how sodium ions...Ch. 12.4 - How stimulation of a neuron generates a local...Ch. 12.4 - Prob. 4AYLOCh. 12.4 - Prob. 5AYLOCh. 12.4 - Prob. 6AYLOCh. 12.4 - Prob. 7AYLOCh. 12.4 - How one action potential triggers another; how the...Ch. 12.4 - Saltatory conduction in a myelinated nerve fiber,...Ch. 12.5 - Prob. 18BYGOCh. 12.5 - Prob. 19BYGOCh. 12.5 - Prob. 20BYGOCh. 12.5 - Prob. 21BYGOCh. 12.5 - Prob. 1AYLOCh. 12.5 - Prob. 2AYLOCh. 12.5 - Prob. 3AYLOCh. 12.5 - Prob. 4AYLOCh. 12.5 - Excitatory synapses; how acetylcholine and...Ch. 12.5 - Prob. 6AYLOCh. 12.5 - Prob. 7AYLOCh. 12.5 - Prob. 8AYLOCh. 12.5 - Prob. 9AYLOCh. 12.6 - Prob. 22BYGOCh. 12.6 - Prob. 23BYGOCh. 12.6 - Prob. 24BYGOCh. 12.6 - Contrast serial and parallel processing and...Ch. 12.6 - Prob. 26BYGOCh. 12.6 - Explain how long-term potentiation and long-term...Ch. 12.6 - Prob. 1AYLOCh. 12.6 - Prob. 2AYLOCh. 12.6 - Prob. 3AYLOCh. 12.6 - How a postsynaptic neurons decision to fire...Ch. 12.6 - Prob. 5AYLOCh. 12.6 - Mechanisms of presynaptic facilitation and...Ch. 12.6 - Prob. 7AYLOCh. 12.6 - Prob. 8AYLOCh. 12.6 - The meanings of neural pool and neural circuitCh. 12.6 - The difference between a neurons discharge zone...Ch. 12.6 - Diverging, converging, reverberating, and parallel...Ch. 12.6 - The difference between serial and parallel...Ch. 12.6 - The cellular basis of memory; what memory consists...Ch. 12.6 - Prob. 14AYLOCh. 12.6 - Prob. 15AYLOCh. 12 - The integrative functions of the nervous system...Ch. 12 - The highest density of voltage-gated ion channels...Ch. 12 - The soma of a mature neuron lacks a. a nucleus. b....Ch. 12 - The glial cells that fight infections in the CNS...Ch. 12 - Posttetanic potentiation of a synapse increases...Ch. 12 - An IPSP is_____of the postsynaptic neuron. a. a...Ch. 12 - Prob. 7TYRCh. 12 - Prob. 8TYRCh. 12 - Prob. 9TYRCh. 12 - Prob. 10TYRCh. 12 - Prob. 11TYRCh. 12 - Prob. 12TYRCh. 12 - Prob. 13TYRCh. 12 - Prob. 14TYRCh. 12 - Prob. 15TYRCh. 12 - A myelinated nerve fiber can produce action...Ch. 12 - Prob. 17TYRCh. 12 - Prob. 18TYRCh. 12 - Prob. 19TYRCh. 12 - Prob. 20TYRCh. 12 - Prob. 1BYMVCh. 12 - Prob. 2BYMVCh. 12 - Prob. 3BYMVCh. 12 - Prob. 4BYMVCh. 12 - Prob. 5BYMVCh. 12 - Prob. 6BYMVCh. 12 - Prob. 7BYMVCh. 12 - Prob. 8BYMVCh. 12 - Prob. 9BYMVCh. 12 - Prob. 10BYMVCh. 12 - Prob. 1WWTSCh. 12 - Prob. 2WWTSCh. 12 - Prob. 3WWTSCh. 12 - Prob. 4WWTSCh. 12 - Excitatory postsynaptic potentials lower the...Ch. 12 - Prob. 6WWTSCh. 12 - Prob. 7WWTSCh. 12 - Myelinated nerve fibers conduct signals more...Ch. 12 - Prob. 9WWTSCh. 12 - Prob. 10WWTSCh. 12 - Schizophrenia is sometimes treated with drugs such...Ch. 12 - Hyperkalemia is an excess of potassium ill the...Ch. 12 - Suppose a poison were to slow down the Na+-K+...Ch. 12 - Prob. 4TYCCh. 12 - Prob. 5TYC
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- A neuron responds to adequate stimulation with _______, a type of self-propagating signal.arrow_forwardThe concentration of potassium ions inside a nerve cell membrane is higher than the concentration of sodium ions outside the mem-brane, yet the inside of the membrane (where the cation concentra-tion is higher) is negative to the outside. Explain this observation in terms of permeability properties of the membrane.arrow_forwardAfter an action potential, the opening of voltage-gated ________ channels and the inactivation of sodium channels, cause the membrane to return to its resting membrane potential. disodium potassium calcium chloride acetylcholinearrow_forward
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