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

Propagation of Action Potentials

Anatomy & Physiology

11. Nervous Tissue and Nervous System

Propagation of Action Potentials

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following does not affect the speed of an action potential along an axon?

Neurotransmitter type

Myelination

Temperature

Axon diameter

Previous problemNext problem

Verified step by step guidance

Understand that an action potential is an electrical signal that travels along the axon of a neuron.

Recognize that the speed of an action potential can be influenced by several factors related to the physical and chemical properties of the axon.

Consider the role of myelination: Myelin sheaths insulate axons and increase the speed of action potential conduction through a process called saltatory conduction.

Evaluate the effect of temperature: Higher temperatures generally increase the speed of action potential propagation by enhancing the rate of ion channel kinetics.

Analyze the impact of axon diameter: Larger axon diameters reduce internal resistance to the flow of ions, thereby increasing the speed of action potential conduction. Note that neurotransmitter type does not directly affect the speed of an action potential along an axon, as neurotransmitters are involved in synaptic transmission rather than axonal conduction.