Neural Signaling - Neural Signaling 00:37 Information Flow...

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Neural Signaling 00:37 Information Flow Through The Nervous System Neural signaling : cell signaling by networks of nerve cells, neurons . o 1. Reception: process of detecting a stimulus o 2. Transmission: process of sending messages along a neuron, from one to another, or from a neuron to a muscle / gland. In vertebrates: from receptor to CNS (brain and spinal cord.) AFFERENT NEURONS (sensory) : send messages towards the CNS. to INTERNEURONS: association nerurons, integrate input and output. o 3. Integration: interneurons. o 4. Action by Effectors: actual response to stimuli. EFFERENT NEURONS (motor) : carry stimuli away from the CNS towards the muscles / glands = effectors. o PNS = sensory receptors + afferent/efferent neurons. o “reception by sensory receptor-> transmission by afferent neuron-> integration in CNS -> transmission by efferent neuron- >action by effectors” Neurons and Glial Cells neurons = receive & send information glial cells = support and protect neurons and carry out many regulatory functions
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