Artwork showing pain pathways in spinal cord

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Artwork showing pain pathways in spinal cord

Pain pathways. Artwork of a spinal cord section showing pain pathways. Pain is the result of the stimulation of nociceptors (special sensory nerve endings) either by injury or disease. Nociceptors have their cell bodies in the dorsal root ganglia (swelling on the left). There are 2 kinds of pain nerve fibre: fast acute pain fibres & slow chronic pain fibres. Both types connect (synapse) with secondary fibres in the spinal cord. Fast fibres (red) pass impulses to the brains reticular formation, thalamus & cortex. Slow pain fibres (green) pass impulses to the reticular formation and thalamus. The blue arrow represents a modifying neuron from the brain

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6421917

© JOHN BAVOSI/SCIENCE PHOTO LIBRARY

Central Neurone Pain Spinal Cord Nervous System

EDITORS COMMENTS
This artwork showcases the intricate pain pathways within the spinal cord, shedding light on the complex mechanisms behind our perception of pain. The image depicts a section of the spinal cord, with nociceptors - specialized sensory nerve endings responsible for detecting painful stimuli - represented by cell bodies in a swelling on the left known as the dorsal root ganglia. The artwork highlights two types of pain nerve fibers: fast acute pain fibers and slow chronic pain fibers. Both types connect with secondary fibers in the spinal cord through synapses. The fast fibers, depicted in red, transmit impulses to crucial regions of the brain such as the reticular formation, thalamus, and cortex. On the other hand, slow pain fibers (green) relay impulses primarily to the reticular formation and thalamus. A significant aspect illustrated by this piece is a modifying neuron from the brain indicated by a blue arrow. This neuron plays a role in modulating or altering how we perceive and respond to pain signals. Through its meticulous detailing and vibrant colors, this artwork not only provides an aesthetic appeal but also serves as an educational tool for understanding one's own anatomy. It offers valuable insights into how injuries or diseases can stimulate nociceptors leading to various forms of discomfort or distressing sensations that we commonly refer to as "pain. "

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