Properties of Graded and Action Potentials definitions Flashcards

Variable strength signals occurring on dendrites or cell body in response to a stimulus.

Brief, uniform depolarization events propagating along the axon, triggered at the initial segment.

A process making the membrane more positive, crucial in action potentials.

A process making the membrane more negative, possible in graded potentials.

The axon region where graded potentials transition to action potentials.

The membrane potential of approximately -55 millivolts required to trigger an action potential.

A concept where action potentials fire only if the threshold is reached, with identical magnitude.

Neuron structures receiving signals, where graded potentials typically occur.

Neuron structure sending signals, where action potentials propagate.

An external factor causing ion channels to open or close, initiating graded potentials.

The electrical potential difference across a cell's membrane, crucial for neuron signaling.

The baseline membrane potential of a neuron, typically around -70 millivolts.

The magnitude of a stimulus affecting the strength of graded potentials.

The process of action potentials traveling along the axon.

A nerve cell responsible for receiving and transmitting signals through graded and action potentials.