An electric current flows directly from cell to cell through gap junctions at electrical synapses. The synapses are mostly chemical synapses that are involved in the release of neurotransmitters. The neurotransmitters are stored in synaptic vesicles in synaptic terminals.

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Answer 1

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Chapter 48, Problem 6IQ

a.

Summary Introduction

Introduction: An electric current flows directly from cell to cell through gap junctions at electrical synapses. The synapses are mostly chemical synapses that are involved in the release of neurotransmitters. The neurotransmitters are stored in synaptic vesicles in synaptic terminals.

b.

Summary Introduction

Introduction: The neurotransmitters bind to a receptor on a ligand-gated ion channel in the postsynaptic cell membrane. This binding will permit the ions to cross the membrane and thus, a graded postsynaptic potential is generated.

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When the action potential reaches the presynaptic terminal, which ion must enter the presynaptic terminal to evoke release of the neurotransmitter?

Describe how an action potential in a presynaptic neuron causes a) an excitatory postsynaptic potential; or b) an inhibitory postsynaptic potential in a postsynaptic neuron

Why is that if A, B, and D neurons were all activated, an action potential in neuron C would not occur. But if A and D were activated, an action potential in C would occur?

Answer 2

Question

Chapter 48, Problem 6IQ

a.

Summary Introduction

Introduction: An electric current flows directly from cell to cell through gap junctions at electrical synapses. The synapses are mostly chemical synapses that are involved in the release of neurotransmitters. The neurotransmitters are stored in synaptic vesicles in synaptic terminals.

b.

Summary Introduction

Introduction: The neurotransmitters bind to a receptor on a ligand-gated ion channel in the postsynaptic cell membrane. This binding will permit the ions to cross the membrane and thus, a graded postsynaptic potential is generated.

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Answer 3

Question

Chapter 48, Problem 6IQ

a.

Summary Introduction

Introduction: An electric current flows directly from cell to cell through gap junctions at electrical synapses. The synapses are mostly chemical synapses that are involved in the release of neurotransmitters. The neurotransmitters are stored in synaptic vesicles in synaptic terminals.

b.

Summary Introduction

Introduction: The neurotransmitters bind to a receptor on a ligand-gated ion channel in the postsynaptic cell membrane. This binding will permit the ions to cross the membrane and thus, a graded postsynaptic potential is generated.

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Answer 4

Question

Chapter 48, Problem 6IQ

a.

Summary Introduction

Introduction: An electric current flows directly from cell to cell through gap junctions at electrical synapses. The synapses are mostly chemical synapses that are involved in the release of neurotransmitters. The neurotransmitters are stored in synaptic vesicles in synaptic terminals.

b.

Summary Introduction

Introduction: The neurotransmitters bind to a receptor on a ligand-gated ion channel in the postsynaptic cell membrane. This binding will permit the ions to cross the membrane and thus, a graded postsynaptic potential is generated.

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Answer 5

Chapter 48, Problem 6IQ

a.

Summary Introduction

Introduction: An electric current flows directly from cell to cell through gap junctions at electrical synapses. The synapses are mostly chemical synapses that are involved in the release of neurotransmitters. The neurotransmitters are stored in synaptic vesicles in synaptic terminals.

b.

Summary Introduction

Introduction: The neurotransmitters bind to a receptor on a ligand-gated ion channel in the postsynaptic cell membrane. This binding will permit the ions to cross the membrane and thus, a graded postsynaptic potential is generated.

Answer 6

Chapter 48, Problem 6IQ

a.

Summary Introduction

Introduction: An electric current flows directly from cell to cell through gap junctions at electrical synapses. The synapses are mostly chemical synapses that are involved in the release of neurotransmitters. The neurotransmitters are stored in synaptic vesicles in synaptic terminals.

Answer 7

Chapter 48, Problem 6IQ

a.

Summary Introduction

Introduction: An electric current flows directly from cell to cell through gap junctions at electrical synapses. The synapses are mostly chemical synapses that are involved in the release of neurotransmitters. The neurotransmitters are stored in synaptic vesicles in synaptic terminals.

Answer 8

b.

Summary Introduction

Introduction: The neurotransmitters bind to a receptor on a ligand-gated ion channel in the postsynaptic cell membrane. This binding will permit the ions to cross the membrane and thus, a graded postsynaptic potential is generated.

Answer 9

b.

Summary Introduction

Introduction: The neurotransmitters bind to a receptor on a ligand-gated ion channel in the postsynaptic cell membrane. This binding will permit the ions to cross the membrane and thus, a graded postsynaptic potential is generated.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 48 - Prob. 1IQ Ch. 48 - a. What is the principal cation inside the cell?...Ch. 48 - The following diagram shows the changes in...Ch. 48 - Prob. 4IQ Ch. 48 - Prob. 5IQ Ch. 48 - Prob. 6IQ Ch. 48 - Prob. 7IQ Ch. 48 - Develop a flowchart or diagram or write a...Ch. 48 - Prob. 1TYK Ch. 48 - Prob. 2TYK

An electric current flows directly from cell to cell through gap junctions at electrical synapses. The synapses are mostly chemical synapses that are involved in the release of neurotransmitters. The neurotransmitters are stored in synaptic vesicles in synaptic terminals.

Solution Summary: The author explains that an electric current flows directly from cell to cell through gap junctions at electrical synapses. Temporal summation occurs when the neurotransmitters are released repeatedly from a synaptic terminal.

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Introduction: An electric current flows directly from cell to cell through gap junctions at electrical synapses. The synapses are mostly chemical synapses that are involved in the release of neurotransmitters. The neurotransmitters are stored in synaptic vesicles in synaptic terminals.

Introduction: The neurotransmitters bind to a receptor on a ligand-gated ion channel in the postsynaptic cell membrane. This binding will permit the ions to cross the membrane and thus, a graded postsynaptic potential is generated.

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