Cochlear efferent neurons projecting to both ears in the chicken, Gallus domesticus

Different retrograde neuroanatomical tracers were injected into each cochlea of adult chicken. The number of cells labeled in the cochlear efferent cell group found bilaterally within the caudal pontine reticular formation depended upon the tracer, with True Blue and Fluoro Gold yielding maximal ave...

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Veröffentlicht in:Hearing research 1992-06, Vol.60 (1), p.110-114
Hauptverfasser: Schwarz, D.W.F., Schwarz, I.E., Dezsö, A.
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container_title Hearing research
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creator Schwarz, D.W.F.
Schwarz, I.E.
Dezsö, A.
description Different retrograde neuroanatomical tracers were injected into each cochlea of adult chicken. The number of cells labeled in the cochlear efferent cell group found bilaterally within the caudal pontine reticular formation depended upon the tracer, with True Blue and Fluoro Gold yielding maximal average counts of 332 efferent neurons per injection. Double labeling of less than 1% of these cells was possible with the combination of True Blue and Diamidino Yellow. Thus the contribution of efferent neurons with axon collaterals projecting to both ears is not fundamentally different in birds and other vertebrates.
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subjects Animals
Auditory pathway
Auditory Pathways - anatomy & histology
Bilateral projection
Biological and medical sciences
Birds
Chickens - anatomy & histology
Cochlea - innervation
Cochlear efferents
Ear and associated structures. Auditory pathways and centers. Hearing. Vocal organ. Phonation. Sound production. Echolocation
Ear, Inner - innervation
Efferent Pathways - anatomy & histology
Female
Fundamental and applied biological sciences. Psychology
Vertebrates: nervous system and sense organs
title Cochlear efferent neurons projecting to both ears in the chicken, Gallus domesticus
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