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Encyclopedia > A delta fiber
A delta fiber
A delta fiber not labeled, but fibers terminate at Rexed lamina I, labeled at upper left.
Dorlands/Elsevier f_05/12360464

A delta fibers () are the fibers which convey fast pain information. Image File history File links Medulla_spinalis_-_Substantia_grisea_-_English. ... Elseviers logo. ... Look up Pain in Wiktionary, the free dictionary. ...

They are much faster than the C fibers because they are myelinated, but they are much thinner than other "A" caliber nerve fibers, so they conduct signals more slowly than the other fibers of that class. C-fibers are unmyeliniated and as a result, have a slower conduction velocity, lower than 2 m/s. ... In neuroscience, myelin is an electrically insulating phospholipid layer that surrounds the axons of many neurons. ...

The fibers terminate at Rexed lamina I.

External links

  • http://instruct1.cit.cornell.edu/courses/psych396/student2006/the_biology_of_pain_mac_version/functions.html



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