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Neurones
optic nerve
Unmyelinated nerve fibers conduct impulses more slowly than myelinated nerve fibers. Myelinated nerve fibers have a fatty substance called myelin sheath that allows for faster transmission of impulses compared to unmyelinated fibers without this sheath.
Nerve signals can travel at speeds ranging from 1 meter per second to more than 100 meters per second. The speed depends on various factors such as the type of nerve fiber, myelination, and the presence of nodes of Ranvier.
Neurotransmitters are chemicals that transmit signals between nerve cells at synapses, while impulses refer to the electrical signals that travel along the nerve cells themselves. Neurotransmitters bridge the gap between two nerve cells, whereas impulses are the electrical messages that travel along the length of a nerve cell.
Nerve cells or neurons have the ability to respond to stimuli by generating signals such as action potentials. These signals travel along the nerve cells to communicate information within the nervous system.
Nerve signals Thats what my crossword was.
Some axons have an insulating coating, called the fatty myelin sheath, to make signals travel faster.
Nerve speeds vary, BUT on average move 115-197 ft/sec (35-60 m/sec).
The Vegal Nerve conveys parasympathetic signals to the heart
Nerve impulses are electrical signals that travel along the length of a nerve cell. These signals are initiated by the movement of ions across the cell membrane, creating a wave of depolarization that propagates down the length of the nerve fiber. This depolarization causes the nerve cell to fire, transmitting the signal to other cells.