conduction

The term "conduction" in biochemistry primarily refers to the movement of ions across cell membranes, which is crucial for cellular function. This process is facilitated by specialized protein structures embedded within the cell membrane. These proteins act as channels or pumps, allowing charged ions like sodium, potassium, and calcium to pass through the otherwise impermeable lipid bilayer.12

This ion movement is fundamental to processes such as nerve impulse transmission, muscle contraction, and nutrient transport. The flow of ions down their concentration gradients is known as diffusion, and when this movement is harnessed to transport other substances against their gradients, it's termed active transport. In the nervous system, the rapid propagation of these electrical signals, or action potentials, along nerve fibers is called conduction. The velocity of this conduction is influenced by factors like nerve fiber diameter, temperature, and myelination.134