It is the firing of a nerve which sends an electrical signal down the axons of that nerve. The message propagates by the movement of Sodium (Na) and Potassium (K) ions in and out of the axon wall/sheath.
The electrical messages, called nerve impulses, may travel as fast as 150m per sec or as slow as 0.2m/s
a nerve impulse is an electrical signal that travels along the axon of a neurone to and from receptor.
the spinal nerve sends nerve impulses away from the CNS
It's main purpose is to transport messages from one part of the body to another in the form of nerve impulses.
Neuron
Impulses carried by the olfactory nerve are for the sense of smell.
Optic Nerve
to receive and conduct electrochemical impulses
its long extensions
long extensions
to transfer nerve impulses to the brain
the spinal nerve sends nerve impulses away from the CNS
The nodes of Ranvier are gaps in the myelin sheath that help speed up the transmission of nerve impulses by allowing the electrical signal to jump from one node to the next, a process known as saltatory conduction. This helps the nerve impulses travel faster along the nerve fiber.
Chemicals that retard behavior by affecting nerve impulses can include depressants like alcohol, benzodiazepines, and barbiturates, which slow down nerve impulses. Stimulants like amphetamines and cocaine can speed up nerve impulses. These substances can alter brain function and behavior by modulating neurotransmitters in the brain.
nerve impulses
Nerve impulses are electrical signals.
The primary function of the peduncle is to control body movements. It sends nerve impulses from our brain to control our body.
Cholesterol provides insulation in neurons to improve the conduction of nerve impulses.
vagus nerve