Excitabilných
Excitabilných is a term used in biology and physiology to describe the property of certain cells or tissues to respond to a stimulus by generating an electrical signal. This ability is primarily associated with nerve cells (neurons) and muscle cells. When a suitable stimulus is applied, it causes a change in the electrical potential across the cell membrane, leading to the generation of an action potential.
The key characteristic of excitability is the presence of voltage-gated ion channels within the cell membrane.
Upon stimulation, a rapid influx of positive ions, typically Na+, into the cell causes depolarization, making
This process of excitation is fundamental for processes such as nerve impulse transmission, muscle contraction, and