Axon Cable Model: Understanding Large Potential Changes in Neurons

What does the axon cable model describe?

A) Only the re-polarization of the membrane
B) Only the depolarization of the membrane
C) The propagation of large potential changes
D) The propagation of, The axon cable model is good to describe the propagation of large potential changes.

Answer:

The axon cable model is good to describe the propagation of large potential changes in neurons.

The axon cable model is a simple model that explains the electrical behavior of an axon of a neuron. It describes the behavior of the axon during the transmission of electrical impulses through it. The axon cable model is commonly used to study the propagation of large potential changes in neurons.

This model assumes that the axon is a long cable, which is cylindrical in shape and has a uniform diameter along its length. The axon is covered by an insulating sheath called the myelin sheath, which increases the speed of electrical conduction.

The model describes the propagation of electrical impulses along the axon, from the cell body to the axon terminal. The propagation of electrical impulses is characterized by depolarization and repolarization of the axon membrane. The depolarization is caused by the influx of positively charged ions into the axon, which causes the membrane potential to become less negative. This depolarization spreads along the axon, and it is followed by repolarization, which is the restoration of the membrane potential to its resting state.

The axon cable model is a good approximation of the behavior of a real axon, and it has been used to study the properties of neurons and the nervous system.