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What (who) is B fibers - definition
ONE OF THE THREE CLASSES OF NERVE FIBER
B fiber; Group B nerve fibre; Group B nerve fibers; Group B nerve fibres
Group B nerve fiber
Group B nerve fibers are axons, which are moderately myelinated, which means less myelinated than group A nerve fibers, and more myelinated than group C nerve fibers. Their conduction velocity is 3 to 14 m/s.
Mossy fiber (hippocampus)
AXONS OF CERTAIN CELLS IN THE DENTATE GYRUS
Mossy fibers, hippocampal; Hippocampal mossy fibers
In the hippocampus, the mossy fiber pathway consists of unmyelinated axons projecting from granule cells in the dentate gyrus that terminate on modulatory hilar mossy cells and in Cornu Ammonis area 3 (CA3), a region involved in encoding short-term memory. These axons were first described as mossy fibers by Santiago Ramón y Cajal as they displayed varicosities along their lengths that gave them a mossy appearance.
Purkinje fibers
PURKINJE FIBERS ALLOW THE HEART'S CONDUCTION SYSTEM TO CREATE SYNCHRONIZED CONTRACTIONS OF ITS VENTRICLES
Purkinje fibres; Purkinje fibre; Purkinje Fibers; Purkinge fibres; Purjinke fibers; Purkinje cell heart; Purkinje fiber; Subendocardial branches; Purkinges fibers; Punkinje Fibers; Purkyne tissue; Purkyne fibers; Fibers of Purkinje
The Purkinje fibers (; often incorrectly ; Purkinje tissue or subendocardial branches) are located in the inner ventricular walls of the heart, just beneath the endocardium in a space called the subendocardium. The Purkinje fibers are specialized conducting fibers composed of electrically excitable cells.
Wikipedia
Group B nerve fiber
Group B nerve fibers are axons, which are moderately myelinated, which means less myelinated than group A nerve fibers, and more myelinated than group C nerve fibers. Their conduction velocity is 3 to 14 m/s. They are usually general visceral afferent fibers and preganglionic nerve fibers of the autonomic nervous system. They are used in Bainbridge reflex as afferents.
