Homework Help is Here – Start Your Trial Now!
Science
Anatomy and Physiology
Which image represents depolarizing graded potential?

Which image represents depolarizing graded potential?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
See similar textbooks
icon
Related questions
Question
Which image represents depolarizing graded potential?
### Understanding Membrane Potential This section provides a detailed explanation of the graphs depicting changes in membrane potential over time. There are four graphs labeled A, B, C, and D, each illustrating different stages or types of membrane potential responses. #### Graph A - **Description**: This graph shows a flat line at a constant value of -70 mV over time. - **Interpretation**: This represents a neuron at its resting membrane potential. The membrane potential remains steady and unchanged across time, indicating no stimulation or activity. #### Graph B - **Description**: This graph shows a small and brief deviation from the resting membrane potential of -70 mV, with a slight fluctuation around the resting value. - **Interpretation**: This could signify a sub-threshold depolarization that does not trigger an action potential. It's likely indicating a small stimulus that the neuron receives, but not enough to reach the threshold necessary for an action potential. #### Graph C - **Description**: This graph shows a slight and brief increase in membrane potential followed by a return to the resting level. - **Interpretation**: This represents a graded potential. The neuron experiences a small depolarization that doesn’t reach the threshold for an action potential but indicates a response to a stimulus. #### Graph D - **Description**: This graph depicts a rapid and significant increase in membrane potential (depolarization) followed by a decrease past the resting potential (hyperpolarization) before it stabilizes back to -70 mV. - **Interpretation**: This represents a complete action potential event. The neuron undergoes rapid depolarization upon meeting the threshold, followed by repolarization and a short hyperpolarization phase before returning to the resting potential. ### Summary of Key Concepts: - **Resting Membrane Potential**: The stable, baseline voltage of a neuron at rest, typically around -70 mV, as shown in Graph A. - **Sub-Threshold Depolarization**: Small changes that do not reach the threshold needed to induce an action potential, as seen in Graph B. - **Graded Potentials**: Small deviations in membrane potential that reflect the strength of a stimulus, demonstrated in Graph C. - **Action Potential**: A rapid and large change in membrane potential that occurs when a neuron fires, complete with depolarization, repolarization, and hyperpolarization as shown in Graph D. Understanding these graphs is fundamental for learning about
Transcribed Image Text:### Understanding Membrane Potential This section provides a detailed explanation of the graphs depicting changes in membrane potential over time. There are four graphs labeled A, B, C, and D, each illustrating different stages or types of membrane potential responses. #### Graph A - **Description**: This graph shows a flat line at a constant value of -70 mV over time. - **Interpretation**: This represents a neuron at its resting membrane potential. The membrane potential remains steady and unchanged across time, indicating no stimulation or activity. #### Graph B - **Description**: This graph shows a small and brief deviation from the resting membrane potential of -70 mV, with a slight fluctuation around the resting value. - **Interpretation**: This could signify a sub-threshold depolarization that does not trigger an action potential. It's likely indicating a small stimulus that the neuron receives, but not enough to reach the threshold necessary for an action potential. #### Graph C - **Description**: This graph shows a slight and brief increase in membrane potential followed by a return to the resting level. - **Interpretation**: This represents a graded potential. The neuron experiences a small depolarization that doesn’t reach the threshold for an action potential but indicates a response to a stimulus. #### Graph D - **Description**: This graph depicts a rapid and significant increase in membrane potential (depolarization) followed by a decrease past the resting potential (hyperpolarization) before it stabilizes back to -70 mV. - **Interpretation**: This represents a complete action potential event. The neuron undergoes rapid depolarization upon meeting the threshold, followed by repolarization and a short hyperpolarization phase before returning to the resting potential. ### Summary of Key Concepts: - **Resting Membrane Potential**: The stable, baseline voltage of a neuron at rest, typically around -70 mV, as shown in Graph A. - **Sub-Threshold Depolarization**: Small changes that do not reach the threshold needed to induce an action potential, as seen in Graph B. - **Graded Potentials**: Small deviations in membrane potential that reflect the strength of a stimulus, demonstrated in Graph C. - **Action Potential**: A rapid and large change in membrane potential that occurs when a neuron fires, complete with depolarization, repolarization, and hyperpolarization as shown in Graph D. Understanding these graphs is fundamental for learning about
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Anatomy and Physiology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Anatomy & Physiology
Anatomy & Physiology
Anatomy and Physiology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy
Human Anatomy
Anatomy and Physiology
ISBN:
9780135168059
Author:
Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher:
Pearson Education, Inc.,
Anatomy & Physiology: An Integrative Approach
Anatomy & Physiology: An Integrative Approach
Anatomy and Physiology
ISBN:
9780078024283
Author:
Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher:
McGraw-Hill Education
Human Anatomy & Physiology (Marieb, Human Anatomy…
Human Anatomy & Physiology (Marieb, Human Anatomy…
Anatomy and Physiology
ISBN:
9780321927040
Author:
Elaine N. Marieb, Katja Hoehn
Publisher:
PEARSON
SEE MORE TEXTBOOKS