Which of the following describes the movement of the correct ion in the falling phase of the action potent sodium moves into the cell potassium moves out of the cell potassium moves into the cell O sodium moves out of the cell

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,...
icon
Related questions
Question
---
### Understanding Ion Movement During Action Potential

#### Question:

Which of the following describes the movement of the correct ion in the falling phase of the action potential?

#### Options:
- ⃝ Sodium moves into the cell
- ⃝ Potassium moves out of the cell
- ⃝ Potassium moves into the cell
- ⃝ Sodium moves out of the cell

#### Explanation:

During the action potential of a neuron, several phases occur which involve the movement of ions across the cell membrane. In the falling phase, or repolarization phase, potassium (K⁺) ions move out of the cell. This movement is essential for returning the cell to its resting membrane potential after the depolarization phase.

**Correct Answer:**
- ⃝ Potassium moves out of the cell

This specific movement helps to reduce the positive charge inside the cell, thereby bringing the membrane potential back down to a negative value, closer to the resting state.

---

This educational content provides insights into the ionic movements essential for understanding the fundamental processes of neuronal action potentials. Such knowledge is pivotal for students studying neuroscience, physiology, and related fields.
Transcribed Image Text:--- ### Understanding Ion Movement During Action Potential #### Question: Which of the following describes the movement of the correct ion in the falling phase of the action potential? #### Options: - ⃝ Sodium moves into the cell - ⃝ Potassium moves out of the cell - ⃝ Potassium moves into the cell - ⃝ Sodium moves out of the cell #### Explanation: During the action potential of a neuron, several phases occur which involve the movement of ions across the cell membrane. In the falling phase, or repolarization phase, potassium (K⁺) ions move out of the cell. This movement is essential for returning the cell to its resting membrane potential after the depolarization phase. **Correct Answer:** - ⃝ Potassium moves out of the cell This specific movement helps to reduce the positive charge inside the cell, thereby bringing the membrane potential back down to a negative value, closer to the resting state. --- This educational content provides insights into the ionic movements essential for understanding the fundamental processes of neuronal action potentials. Such knowledge is pivotal for students studying neuroscience, physiology, and related fields.
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Membrane chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education