Categories of axons in the inferior cardiac nerve of the cat

D. G. Emery, R. D. Foremen, R. E. Coggeshall

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Myelinated and unmyelinated axons in the inferior cardiac nerve of the cat were examined to determine how many axons were (1) sensory, (2) preganglionic sympathetic, and (3) postganglionic sympathetic. In one group of cats, a segment was removed from the middle of the inferior cardiac nerve as a control, and the proximal and distal stumps of the nerve were examined one week later. In another group of cats, the control segment of nerve was removed and the first thoracic white ramus communicans and sympathetic trunk were cut proximal to the stellate ganglion, followed in 1 wk by examination of the proximal and distal stumps of the inferior cardiac nerve. In still another group of cats, the first 5 thoracic spinal nerves were cut just distal to the dorsal root ganglion. The counts of myelinated and unmyelinated axons after these surgical procedures indicated that, in the cat inferior cardiac nerve, all or almost all of the approximately 30,000 unmyelinated axons and 10% of the myelinated axons are postganglionic sympathetic fibers, and that approximately 90% of the myelinated axons are sensory.

Original languageEnglish (US)
Pages (from-to)301-310
Number of pages10
JournalJournal of Comparative Neurology
Volume177
Issue number2
StatePublished - 1978

Fingerprint

Axons
Cats
Postganglionic Sympathetic Fibers
Thoracic Nerves
Stellate Ganglion
Spinal Nerves
Spinal Ganglia
Thorax
Control Groups

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Emery, D. G., Foremen, R. D., & Coggeshall, R. E. (1978). Categories of axons in the inferior cardiac nerve of the cat. Journal of Comparative Neurology, 177(2), 301-310.

Categories of axons in the inferior cardiac nerve of the cat. / Emery, D. G.; Foremen, R. D.; Coggeshall, R. E.

In: Journal of Comparative Neurology, Vol. 177, No. 2, 1978, p. 301-310.

Research output: Contribution to journalArticle

Emery, DG, Foremen, RD & Coggeshall, RE 1978, 'Categories of axons in the inferior cardiac nerve of the cat', Journal of Comparative Neurology, vol. 177, no. 2, pp. 301-310.
Emery, D. G. ; Foremen, R. D. ; Coggeshall, R. E. / Categories of axons in the inferior cardiac nerve of the cat. In: Journal of Comparative Neurology. 1978 ; Vol. 177, No. 2. pp. 301-310.
@article{0404d15bc0ba4ac8a2167404abab89be,
title = "Categories of axons in the inferior cardiac nerve of the cat",
abstract = "Myelinated and unmyelinated axons in the inferior cardiac nerve of the cat were examined to determine how many axons were (1) sensory, (2) preganglionic sympathetic, and (3) postganglionic sympathetic. In one group of cats, a segment was removed from the middle of the inferior cardiac nerve as a control, and the proximal and distal stumps of the nerve were examined one week later. In another group of cats, the control segment of nerve was removed and the first thoracic white ramus communicans and sympathetic trunk were cut proximal to the stellate ganglion, followed in 1 wk by examination of the proximal and distal stumps of the inferior cardiac nerve. In still another group of cats, the first 5 thoracic spinal nerves were cut just distal to the dorsal root ganglion. The counts of myelinated and unmyelinated axons after these surgical procedures indicated that, in the cat inferior cardiac nerve, all or almost all of the approximately 30,000 unmyelinated axons and 10{\%} of the myelinated axons are postganglionic sympathetic fibers, and that approximately 90{\%} of the myelinated axons are sensory.",
author = "Emery, {D. G.} and Foremen, {R. D.} and Coggeshall, {R. E.}",
year = "1978",
language = "English (US)",
volume = "177",
pages = "301--310",
journal = "Journal of Comparative Neurology",
issn = "0021-9967",
publisher = "Wiley-Liss Inc.",
number = "2",

}

TY - JOUR

T1 - Categories of axons in the inferior cardiac nerve of the cat

AU - Emery, D. G.

AU - Foremen, R. D.

AU - Coggeshall, R. E.

PY - 1978

Y1 - 1978

N2 - Myelinated and unmyelinated axons in the inferior cardiac nerve of the cat were examined to determine how many axons were (1) sensory, (2) preganglionic sympathetic, and (3) postganglionic sympathetic. In one group of cats, a segment was removed from the middle of the inferior cardiac nerve as a control, and the proximal and distal stumps of the nerve were examined one week later. In another group of cats, the control segment of nerve was removed and the first thoracic white ramus communicans and sympathetic trunk were cut proximal to the stellate ganglion, followed in 1 wk by examination of the proximal and distal stumps of the inferior cardiac nerve. In still another group of cats, the first 5 thoracic spinal nerves were cut just distal to the dorsal root ganglion. The counts of myelinated and unmyelinated axons after these surgical procedures indicated that, in the cat inferior cardiac nerve, all or almost all of the approximately 30,000 unmyelinated axons and 10% of the myelinated axons are postganglionic sympathetic fibers, and that approximately 90% of the myelinated axons are sensory.

AB - Myelinated and unmyelinated axons in the inferior cardiac nerve of the cat were examined to determine how many axons were (1) sensory, (2) preganglionic sympathetic, and (3) postganglionic sympathetic. In one group of cats, a segment was removed from the middle of the inferior cardiac nerve as a control, and the proximal and distal stumps of the nerve were examined one week later. In another group of cats, the control segment of nerve was removed and the first thoracic white ramus communicans and sympathetic trunk were cut proximal to the stellate ganglion, followed in 1 wk by examination of the proximal and distal stumps of the inferior cardiac nerve. In still another group of cats, the first 5 thoracic spinal nerves were cut just distal to the dorsal root ganglion. The counts of myelinated and unmyelinated axons after these surgical procedures indicated that, in the cat inferior cardiac nerve, all or almost all of the approximately 30,000 unmyelinated axons and 10% of the myelinated axons are postganglionic sympathetic fibers, and that approximately 90% of the myelinated axons are sensory.

UR - http://www.scopus.com/inward/record.url?scp=0017925181&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0017925181&partnerID=8YFLogxK

M3 - Article

C2 - 621293

AN - SCOPUS:0017925181

VL - 177

SP - 301

EP - 310

JO - Journal of Comparative Neurology

JF - Journal of Comparative Neurology

SN - 0021-9967

IS - 2

ER -