Depolamada

Depolamada, also known as depolarization, is a fundamental process in neurobiology and cell biology, referring to the reversal of the resting potential of a cell membrane. This process is crucial for the transmission of electrical signals in neurons and muscle cells. During depolarization, the cell membrane becomes more permeable to positively charged ions, such as sodium (Na+), leading to an influx of these ions and a subsequent increase in the membrane's positive charge. This change in charge is what allows for the propagation of action potentials, which are the electrical signals that enable communication between neurons and the contraction of muscle cells. Depolarization is typically followed by repolarization, where the membrane potential returns to its resting state, and then hyperpolarization, where the membrane potential becomes more negative than the resting state. This sequence of events is essential for the proper functioning of the nervous and muscular systems.