How does a nerve impulse follow the all-or-nothing principle???
nerve my a$$ nerve
The action action potential produced needs to reach the threshold for the AP to be propagated. If it doesn't reach the threshold, there is not enough Na+ to stimulate the positive feedback system which allows the action potential to be self-propagated. Instead, K+ channels will be opened, and it will enter repolarisation phase, and the AP wll not be conducted.
nerve impulse
a nerve impulse
Yes, an action potential is needed for a nerve impulse to occur.
Yes, an action potential is needed for a nerve impulse to occur.
It is called a nerve impulse.
Neurotransmitters in a neuron allow a nerve impulse to be transmitted from one neuron to another by crossing the synapse and binding to receptors on the receiving neuron. This triggers an electrical or chemical signal to continue the nerve impulse along the neural pathway.
receptors.
Synaptic transmission is chemical, while nerve impulse or axonal transmission is electrical.
When the electrical impulse from a nerve stops, the muscle relaxes and returns to its resting state. This is because the nerve impulse initiates the release of calcium ions in the muscle cells, leading to muscle contraction. When the nerve impulse stops, the calcium ions are reabsorbed, causing the muscle to relax.
Carry a nerve impulse to the next nerve OR to an effector cell.