Herbst corpuscles
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Transverse section of a Herbst corpuscle in the beak of a mallard (azan)
A Herbst corpuscle (corpusculum lamellosum avium) is ovoid shaped and is composed of :
- An inner core or inner bulb, containing a central afferent axon that is surrounded by schwann cells (palissade cells, lamellar cells)
- An outer core, subcapsular space or peribulbar space with inernal and external lamellae
- an outer capsule of dens lamellae with flattened cells and collganeous fibers