Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

11. Nervous Tissue and Nervous System

Properties of Graded and Action Potentials

Anatomy & Physiology

11. Nervous Tissue and Nervous System

Properties of Graded and Action Potentials

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Multiple Choice

Which of the following statements about graded potentials is FALSE?

Graded potentials act as short distance signals.

The magnitude of a graded potential is proportional to the magnitude of the stimulus.

Graded potentials occur mainly in axons.

Graded potentials can be depolarizing or hyperpolarizing.

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Verified step by step guidance

Understand the concept of graded potentials: Graded potentials are changes in membrane potential that vary in size, as opposed to being all-or-none. They are typically found in dendrites and cell bodies, not axons.

Identify the characteristics of graded potentials: They act as short-distance signals, meaning they do not travel far along the neuron. They can be depolarizing (making the inside of the cell less negative) or hyperpolarizing (making the inside of the cell more negative).

Examine the relationship between stimulus and graded potential: The magnitude of a graded potential is proportional to the magnitude of the stimulus, meaning a stronger stimulus will result in a larger change in membrane potential.

Evaluate the statement about axons: Graded potentials occur mainly in dendrites and cell bodies, not axons. Axons are typically associated with action potentials, which are long-distance signals.

Determine the false statement: Based on the characteristics of graded potentials, the statement 'Graded potentials occur mainly in axons' is false, as they primarily occur in dendrites and cell bodies.