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. 1975 Oct;251(2):483–496. doi: 10.1113/jphysiol.1975.sp011104

The responses of muscle spindles in sheep extraocular muscles.

J S Browne
PMCID: PMC1348439  PMID: 127036

Abstract

1. Responses from de-efferented muscle spindles in sheep extraocular muscles have been recorded in the Gasserian ganglion using glass microelectrodes. 2. The afferent fibre conduction velocities ranged from 32 to 106 m/sec and most were intermediate. The distribution was unimodal. 3. The afferent responses to ramp stretches and longitudinal vibration of the muscle could not be divided into two groups, but both the dynamic indices and vibration sensitivities of the afferents increased with their conduction velocities. 4. Injection of suxamethonium did not help to classify afferents with intermediate conduction velocity. 5. It is concluded that the afferents from sheep extraocular muscle spindles form a single population whose properties are correlated with their nerve fibre diameters.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Andrew B. L., Leslie G. C., Thompson J. Distribution and properties of muscle spindles in the caudal segmental muscles of the rat together with some comparisons with hind limb muscle spindles. Q J Exp Physiol Cogn Med Sci. 1973 Jan;58(1):19–37. doi: 10.1113/expphysiol.1973.sp002188. [DOI] [PubMed] [Google Scholar]
  2. Bach-y-Rita P., Ito F. In vivo studies on fast and slow muscle fibers in cat extraocular muscles. J Gen Physiol. 1966 Jul;49(6):1177–1198. doi: 10.1085/jgp.0491177. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Brown M. C. A comparison of the spindles in two different muscles of the frog. J Physiol. 1971 Aug;216(3):553–563. doi: 10.1113/jphysiol.1971.sp009540. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Brown M. C., Engberg I., Matthews P. B. The relative sensitivity to vibration of muscle receptors of the cat. J Physiol. 1967 Oct;192(3):773–800. doi: 10.1113/jphysiol.1967.sp008330. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. COOPER S., DANIEL P. M. Responses from the stretch receptors of the goat's extrinsic eye muscles with an intact motor innervation. Q J Exp Physiol Cogn Med Sci. 1957 Apr;42(2):222–231. doi: 10.1113/expphysiol.1957.sp001252. [DOI] [PubMed] [Google Scholar]
  6. COOPER S., DANIEL P. M., WHITTERIDGE D. Afferent impulses in the oculomotor nerve, from the extrinsic eye muscles. J Physiol. 1951 May;113(4):463–474. doi: 10.1113/jphysiol.1951.sp004588. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. COOPER S., DANIEL P. M., WHITTERIDGE D. Muscle spindles and other sensory endings in the extrinsic eye muscles; the physiology and anatomy of these receptors and of their connexions with the brain-stem. Brain. 1955;78(4):564–583. doi: 10.1093/brain/78.4.564. [DOI] [PubMed] [Google Scholar]
  8. Cody F. W., Lee R. W., Taylor A. A functional analysis of the components of the mesencephalic nucleus of the fifth nerve in the cat. J Physiol. 1972 Oct;226(1):249–261. doi: 10.1113/jphysiol.1972.sp009983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Harker D. W. The structure and innervation of sheep superior rectus and levator palpebrae extraocular muscles. II. Muscle spindles. Invest Ophthalmol. 1972 Dec;11(12):970–979. [PubMed] [Google Scholar]
  10. Koeze T. H. Muscle spindle afferent studies in the baboon. J Physiol. 1973 Mar;229(2):297–317. doi: 10.1113/jphysiol.1973.sp010139. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. MATTHEWS P. B. MUSCLE SPINDLES AND THEIR MOTOR CONTROL. Physiol Rev. 1964 Apr;44:219–288. doi: 10.1152/physrev.1964.44.2.219. [DOI] [PubMed] [Google Scholar]
  12. MATTHEWS P. B. THE RESPONSE OF DE-EFFERENTED MUSCLE SPINDLE RECEPTORS TO STRETCHING AT DIFFERENT VELOCITIES. J Physiol. 1963 Oct;168:660–678. doi: 10.1113/jphysiol.1963.sp007214. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Manni E., Bortolami R., Desole C. Eye muscle proprioception and the semilunar ganglion. Exp Neurol. 1966 Oct;16(2):226–236. doi: 10.1016/0014-4886(66)90101-4. [DOI] [PubMed] [Google Scholar]
  14. Matthews P. B., Stein R. B. The regularity of primary and secondary muscle spindle afferent discharges. J Physiol. 1969 May;202(1):59–82. doi: 10.1113/jphysiol.1969.sp008795. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. RENKIN B. Z., VALLBO A. B. SIMULTANEOUS RESPONSES OF GROUPS I AND II CAT MUSCLE SPINDLE AFFERENTS TO MUSCLE POSITION AND MOVEMENT. J Neurophysiol. 1964 May;27:428–450. doi: 10.1152/jn.1964.27.3.429. [DOI] [PubMed] [Google Scholar]
  16. Rack P. M., Westbury D. R. The effects of suxamethonium and acetylcholine on the behaviour of cat muscle spindles during dynamics stretching, and during fusimotor stimulation. J Physiol. 1966 Oct;186(3):698–713. doi: 10.1113/jphysiol.1966.sp008063. [DOI] [PMC free article] [PubMed] [Google Scholar]

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