How you feel pain?
June 21st 2010 18:19
Painful stimulus: Nerve receptors, called nociceptors detect actual or potential tissue damage. When painful stimulus is felt, a protein called a voltage-gated sodium channel amplifies stimulus and excites the peripheral nerve.
Spinal Cord: Peripheral nerve releases chemicals (neurotransmitters) in the spinal cord, which transmit information to the brain.
Brain: Information about the pain arrives at the thalamus, which forwards the message simultaneously to regions of physical sensation, emotional feeling and the thinking region.
Spinal Cord: Peripheral nerve releases chemicals (neurotransmitters) in the spinal cord, which transmit information to the brain.
Brain: Information about the pain arrives at the thalamus, which forwards the message simultaneously to regions of physical sensation, emotional feeling and the thinking region.
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