Podcast
Questions and Answers
What is unique about the connection between cells in the nervous system?
What is unique about the connection between cells in the nervous system?
- Cells are connected to each other in a straight line.
- Cells are not connected to each other.
- One cell is connected to only one other cell.
- One cell is connected to thousands of other cells. (correct)
What type of potential can occur during depolarization or hyperpolarization?
What type of potential can occur during depolarization or hyperpolarization?
- Action Potential
- Membrane Potential
- Electrical Potential
- Graded Potential (correct)
What happens when two graded potentials are added together?
What happens when two graded potentials are added together?
- They are added together (correct)
- They are multiplied together
- They cancel each other out
- They remain the same
What determines the strength of a depolarizing graded potential?
What determines the strength of a depolarizing graded potential?
What happens when a stimulus causes a depolarization above the threshold?
What happens when a stimulus causes a depolarization above the threshold?
What is true about the duration of a stimulus and the resulting depolarization?
What is true about the duration of a stimulus and the resulting depolarization?
What is the primary function of dendrites in a neuron?
What is the primary function of dendrites in a neuron?
What is the role of the axon hillock in a neuron?
What is the role of the axon hillock in a neuron?
What is the primary function of the axon terminals in a neuron?
What is the primary function of the axon terminals in a neuron?
What is the purpose of the myelin sheath on an axon?
What is the purpose of the myelin sheath on an axon?
What is the function of the cell body in a neuron?
What is the function of the cell body in a neuron?
What is the term for the signals sent from the axon terminals to other cells?
What is the term for the signals sent from the axon terminals to other cells?
What is the term for the process where stimuli are spaced out and generate an action potential?
What is the term for the process where stimuli are spaced out and generate an action potential?
What is the result of an excitatory presynaptic input?
What is the result of an excitatory presynaptic input?
What is the threshold potential for the opening of Na+ channels?
What is the threshold potential for the opening of Na+ channels?
What is the result of an inhibitory presynaptic input?
What is the result of an inhibitory presynaptic input?
What is the term for the electrical impulses transmitted along nerve fibers?
What is the term for the electrical impulses transmitted along nerve fibers?
What happens to K+ permeability during depolarization?
What happens to K+ permeability during depolarization?
Flashcards
Cell connections in the nervous system
Cell connections in the nervous system
One cell is connected to thousands of other cells.
Graded Potential
Graded Potential
A potential that occurs during depolarization or hyperpolarization.
Adding graded potentials
Adding graded potentials
When two graded potentials are added together, they sum up.
Strength of depolarizing graded potential
Strength of depolarizing graded potential
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Action potential trigger
Action potential trigger
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Duration of stimulus and depolarization
Duration of stimulus and depolarization
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Dendrites function
Dendrites function
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Axon hillock role
Axon hillock role
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Axon terminals function
Axon terminals function
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Myelin sheath purpose
Myelin sheath purpose
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Cell body function
Cell body function
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Neurotransmitters
Neurotransmitters
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Spatial Summation
Spatial Summation
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Excitatory presynaptic input
Excitatory presynaptic input
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Threshold potential for Na+ channels
Threshold potential for Na+ channels
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Inhibitory presynaptic input
Inhibitory presynaptic input
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Action Potential
Action Potential
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K+ permeability during depolarization
K+ permeability during depolarization
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