Differences
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dermatome [2024/06/07 02:48] – created - external edit 127.0.0.1 | dermatome [2025/07/01 15:42] (current) – administrador | ||
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- | A dermatome is an area of skin that is mainly supplied | + | ====== Dermatome ====== |
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+ | Dermatomes are areas of the body where sensation | ||
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+ | [[Peripheral nerve]]s generally receive contributions from more than one dermatome. | ||
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+ | Peripheral nerve lesions and nerve root lesions may sometimes be distinguished in part by the pattern of sensory loss. A classic example is splitting of the ring finger in median nerve or ulnar nerve lesions, which does not occur in C8 nerve root injuries. | ||
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There are 8 cervical nerves (C1 being an exception with no dermatome), 12 thoracic nerves, 5 lumbar nerves and 5 sacral nerves. Each of these nerves relays sensation (including pain) from a particular region of skin to the brain. | There are 8 cervical nerves (C1 being an exception with no dermatome), 12 thoracic nerves, 5 lumbar nerves and 5 sacral nerves. Each of these nerves relays sensation (including pain) from a particular region of skin to the brain. |