Abstract
Serial transverse sections of intrinsic postvertebral muscles of a 21 weeks old human fetus were studied after staining with haematoxylin and eosin, Van Gieson's stain with Weigert's haematoxylin, and Glees' silver impregnation technique. Muscle spindles have been demonstrated throughout the entire length of the intrinsic postvertebral muscles. The total numbers of spindles on the right and left sides were determined. Using a special technique of graphic reconstruction, the locations of spindles within these muscles were plotted. Regional differences in the numbers and distribution of spindles were noted. The significance of these findings has been discussed.
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- Andersson G. B., Ortengren R., Herberts P. Quantitative electromyographic studies of back muscle activity relatated to posture and loading. Orthop Clin North Am. 1977 Jan;8(1):85–96. [PubMed] [Google Scholar]
- BARKER D., CHIN N. K. The number and distribution of muscle-spindles in certain muscles of the cat. J Anat. 1960 Oct;94:473–486. [PMC free article] [PubMed] [Google Scholar]
- BARKER D., IP M. C. A study of single and tandem types of muscle-spindle in the cat. Proc R Soc Lond B Biol Sci. 1961 Jul 25;154:377–397. doi: 10.1098/rspb.1961.0038. [DOI] [PubMed] [Google Scholar]
- Basmajian J. V. A fresh look at the intrinsic muscles of the back. Am Surg. 1976 Sep;42(9):685–690. [PubMed] [Google Scholar]
- COOPER S., DANIEL P. M. MUSCLE SPINDLES IN MAN; THEIR MORPHOLOGY IN THE LUMBRICALS AND THE DEEP MUSCLES OF THE NECK. Brain. 1963 Sep;86:563–586. doi: 10.1093/brain/86.3.563. [DOI] [PubMed] [Google Scholar]
- Etemadi A. A. Extensor power of different parts of the erector spinae musculature in man. Anat Anz. 1974;135(1-2):164–177. [PubMed] [Google Scholar]
- FLOYD W. F., SILVER P. H. The function of the erectores spinae muscles in certain movements and postures in man. J Physiol. 1955 Jul 28;129(1):184–203. doi: 10.1113/jphysiol.1955.sp005347. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hoogmartens M. J., Basmajian J. V. Asymmetrical postural tone as a possible cause of idiopathic scoliosis. A preliminary communcation. Electromyogr Clin Neurophysiol. 1973;13(3):365–366. [PubMed] [Google Scholar]
- Hoogmartens M. J., Stuyck J. Left-right ratio of the stretch reflex in the spinal muscles of scoliotics and left-handed subjects. A preliminary communication. Electromyogr Clin Neurophysiol. 1977 Apr-May;17(2):177–178. [PubMed] [Google Scholar]
- JOSEPH J., McCOLL I. Electromyography of muscles of posture: posterior vertebral muscles in males. J Physiol. 1961 Jun;157:33–37. doi: 10.1113/jphysiol.1961.sp006703. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kumar S., Davis P. R. Lumbar vertebral innervation and intra-abdominal pressure. J Anat. 1973 Jan;114(Pt 1):47–53. [PMC free article] [PubMed] [Google Scholar]
- MORIN F., PORTNOY H. Electromyographic study of postural muscles in various positions and movements. Am J Physiol. 1956 Jul;186(1):122–126. doi: 10.1152/ajplegacy.1956.186.1.122. [DOI] [PubMed] [Google Scholar]
- Monticelli G., Ascani E., Salsano V., Salsano A. Experimental scoliosis induced by prolonged minimal electrical stimulation of the paravertebral muscles. Ital J Orthop Traumatol. 1975 Apr;1(1):39–54. [PubMed] [Google Scholar]
- Spencer G. S., Eccles M. J. Spinal muscle in scoliosis. Part 2. The proportion and size of type 1 and type 2 skeletal muscle fibres measured using a computer-controlled microscope. J Neurol Sci. 1976 Nov;30(1):143–154. doi: 10.1016/0022-510x(76)90262-8. [DOI] [PubMed] [Google Scholar]
- Spencer G. S., Zorab P. A. Spinal muscle in scoliosis. Part 1. Histology and histochemistry. J Neurol Sci. 1976 Nov;30(1):137–142. doi: 10.1016/0022-510x(76)90261-6. [DOI] [PubMed] [Google Scholar]
- VOSS H. Zahl und Anordnung der Muskelspindeln in den oberen Zungenbeinmuskeln, im M. trapezius und M. latissimus dorsi. Anat Anz. 1956 Dec 28;103(21-24):443–446. [PubMed] [Google Scholar]
- VOSS H. Zahl und Anordnung der Muskelspindeln in den unteren Zungenbeinmuskeln, dem M. sternocleidomastoideus und den Bauch- und tiefen Nackeamuskeln. Anat Anz. 1958 Nov 29;105(10-16):265–275. [PubMed] [Google Scholar]
- Waters R. L., Morris J. M. Electrical activity of muscles of the trunk during walking. J Anat. 1972 Feb;111(Pt 2):191–199. [PMC free article] [PubMed] [Google Scholar]