How does temperature generally affect nerve conduction velocity?

How does temperature generally affect nerve conduction velocity?

• A. Increased temperature enhances conduction velocity
• B. Temperature has no effect on conduction velocity
• C. Decreased temperature enhances conduction velocity
• D. Increased temperature slows down conduction velocity

Answer: (A)

Increased temperature enhances conduction velocity because the speed at which nerve impulses travel is influenced by the temperature of the surrounding environment. As the temperature rises, the metabolic activity within the nerve cells increases, leading to a faster rate of electrical signal transmission. This is primarily due to the increased efficiency of ion channels, which open and close more rapidly at higher temperatures, allowing for quicker depolarization and repolarization of the nerve membrane. Additionally, myelinated fibers, which are responsible for saltatory conduction, also benefit from increased temperature, resulting in a more effective and rapid conduction of nerve impulses. Therefore, when assessing the relationship between temperature and nerve conduction, it's clear that higher temperatures allow for faster speeds, demonstrating the crucial role of temperature in neurophysiology.

Increased temperature enhances conduction velocity because the speed at which nerve impulses travel is influenced by the temperature of the surrounding environment. As the temperature rises, the metabolic activity within the nerve cells increases, leading to a faster rate of electrical signal transmission. This is primarily due to the increased efficiency of ion channels, which open and close more rapidly at higher temperatures, allowing for quicker depolarization and repolarization of the nerve membrane.

Additionally, myelinated fibers, which are responsible for saltatory conduction, also benefit from increased temperature, resulting in a more effective and rapid conduction of nerve impulses. Therefore, when assessing the relationship between temperature and nerve conduction, it's clear that higher temperatures allow for faster speeds, demonstrating the crucial role of temperature in neurophysiology.