Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

Question

When a neuron is at rest,_____ . a. it is at threshold potential b. voltage-gated sodium channels are open c. sodium–potassium pumps are operating d. it contains more sodium ions than the surrounding interstitial fluid

Answer 1

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Chapter 29, Problem 2SA

Summary Introduction

Introduction:

Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

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When a neuron is at rest,_____ . a. it is at threshold potential b. voltage-gated sodium channels are open c. sodium–potassium pumps are operating d. it contains more sodium ions than the surrounding interstitial fluid

An action potential begins when______ . a. a neuron reaches threshold potential b. voltage-gated potassium gates open c. voltage-gated sodium gates close d. sodium–potassium pumps stop operating

When a neuron’s resting potential is occurring, the neuron is __________ charged on the inside. a. positively c. both positively and negatively b. negatively d. neutrally

Answer 2

Question

Chapter 29, Problem 2SA

Summary Introduction

Introduction:

Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

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Answer 3

Question

Chapter 29, Problem 2SA

Summary Introduction

Introduction:

Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

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Answer 4

Question

Chapter 29, Problem 2SA

Summary Introduction

Introduction:

Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

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Answer 5

Chapter 29, Problem 2SA

Summary Introduction

Introduction:

Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

Answer 6

Chapter 29, Problem 2SA

Summary Introduction

Introduction:

Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

Answer 7

Chapter 29, Problem 2SA

Summary Introduction

Introduction:

Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

Answer 8

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Ch. 29 - ______ relay messages from the brain and spinal...Ch. 29 - Prob. 2SA Ch. 29 - Action potentials occur when ______. a. potassium...Ch. 29 - Neurotransmitters are released by _______. a. axon...Ch. 29 - Prob. 5SA Ch. 29 - Prob. 6SA Ch. 29 - Prob. 7SA Ch. 29 - Prob. 8SA Ch. 29 - Prob. 9SA Ch. 29 - Prob. 10SA

Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

Solution Summary: The author explains that membrane potential is the voltage across a neuron membrane.

Videos

Introduction:

Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

Chapter 29 Solutions

Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

Solution Summary: The author explains that membrane potential is the voltage across a neuron membrane.

Videos

Introduction: Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.

Chapter 29 Solutions

Introduction:

Membrane potential is the voltage across a neuron membrane. During an action potential, there is an abrupt reversal in the charge gradient across the plasma membrane of a neuron. This occurs due to the movement of sodium and potassium ions through the voltage-gated ion channels.