Activated (open) - when a current passes through and changes the voltage difference across a membrane, the channel will activate and the m gate will open. Inactivated (closed) - as the neuron …

In neurons, the cell enters a state of hyperpolarization immediately following the generation of an action potential. While hyperpolarized, the neuron is in a refractory period that lasts roughly 2 milliseconds, …

When neurotransmitters bind to receptors, those receptors become activated. Activated receptors would open or close ion channels, which would affect the membrane potential of the postsynaptic cell. …

The reason for this part of the action potential, which is called the falling phase, is because potassium starts to exit the neuron and it does so through a couple of types of channels. The first are the leak …

A single neuron can’t do very much by itself, and nervous system function depends on groups of neurons that work together. Individual neurons connect to other neurons to stimulate or inhibit their …

At the synapse, the firing of an action potential in one neuron—the presynaptic, or sending, neuron—causes the transmission of a signal to another neuron—the postsynaptic, or receiving, …

Sometimes different parts of different cells perform other functions, but these tend to be where the neuron receives its signal. And we'll talk more about what it means to receive and transmit a signal in …

Each vesicle packet released from the pre-synaptic neuron will contain a set amount of neurotransmitters, which will then bind to some of the receptors on the post-synaptic cell. If the …

A special type of LMN, called a gamma motor neuron, responds to this decreased firing and causes the muscle spindle to contract. This is known as a gamma loop and maintains passive muscle tone.

Instead, when their neurotransmitter binds to the receptor, they activate second messengers inside the neuron. And there are a number of different types of second messenger systems that can be …