2.84 Electrical impulses

understand that stimulation of receptors in the sense organs sends electrical impulses along nerves into and out of the central nervous system, resulting in rapid responses

• The receptors detect a stimuli
• The receptors then send a message along the sensory neuron to the spinal cord
• electrical impulses (signals) are sent through the nerves to the central nervous system
• These impulses pass really quickly through the axons
• The quicker the electricity goes to the CNS the quicker you react therefore the axon is surrounded by fat to insulate the axon so that the electricity flows quicker
• The brain then detects that there is something going on
• electrical signals are sent down the motor neurons to the effectof