It helps in the same way that salt dissolved in water improves the waters ability to conduct electricity to spare you a lecture im just going to put it simply. The salt in the water creates a sort of 'bridge' for the electricity to flow through a similar thing happens in our bodys because impulses are basically electrical and our body is mostly water.
electrical wave conducted along the nerve generated by the voltage difference across the cell membrane of the nerve cells.
In thick well insulated (myelinated) neurones the impulse can travel in excess of 100m/s. In unmyelinated neurones the impulse can be conducted at less than 1m/s
nerve impulse
a nerve impulse
The firing rate in a nerve refers to the frequency at which action potentials are generated and conducted along the nerve. This firing rate can vary depending on the type of nerve and the intensity of the stimulus being received.
In non-myelinated axons, the nerve impulse is going to be produced when the action potential accross a membrane makes a wave of depolarization followed by a wave of repolarization. With the absence of the myelin, the impulse is transmitted continuously throughout the membrane. In a non-myelinated nerve, once an end of the cell, the dendrite, is depolarized, the depolarization a.k.a., the action potential, moves along the nerve membrane, and the area of membrane immediately behind the depolarized section becomes repolarized.
How does a nerve impulse follow the all-or-nothing principle???
nerve my a$$ nerve
Yes, an action potential is needed for a nerve impulse to occur.
Yes, an action potential is needed for a nerve impulse to occur.
In patients with right bundle branch block (RBBB), the nerve impulse is conducted slowly or not at all. The right ventricle finally receives the impulse through muscle-to-muscle spread, outside the regular nerve pathway.
It is called a nerve impulse.