- #1
garytse86
- 311
- 0
The absolute refractory period:
is there any reason for this period (the cause)?
is there any reason for this period (the cause)?
DocToxyn said:A crude, but familiar, example of this might be flushing the toilet.
The refractory period for a neurone is the period of time after an action potential during which the neurone is unable to fire another action potential. This is due to the temporary inactivation of voltage-gated sodium channels.
The refractory period ensures that action potentials travel in one direction down the axon and prevents the neuron from firing continuously. This allows for proper communication between neurons and helps maintain the integrity of the nervous system.
The refractory period typically lasts around 1-2 milliseconds, but can vary depending on the type of neuron and the strength of the stimulus. In general, larger and myelinated neurons have shorter refractory periods.
Yes, the refractory period can be altered by various factors such as hormones, drugs, and disease. For example, some drugs can prolong the refractory period, while certain diseases can shorten it. Additionally, the refractory period can be shortened with repetitive firing of action potentials.
If a neuron experiences a prolonged refractory period, it may result in a decrease in the frequency or complete failure of action potential firing. This can lead to disruptions in neural communication and potentially affect bodily functions controlled by that particular neuron.