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Titolo:
MORPHOLOGICAL AND MORPHOMETRIC CHARACTERIZATION OF ONUFS NUCLEUS IN THE SPINAL-CORD IN MAN
Autore:
PULLEN AH; TUCKER D; MARTIN JE;
Indirizzi:
INST NEUROL,SOBELL DEPT NEUROPHYSIOL,QUEEN SQ LONDON WC1N 3BG ENGLAND LONDON HOSP,COLL MED,INST PATHOL,DEPT NEUROPATHOL LONDON E1 1BB ENGLAND
Titolo Testata:
Journal of Anatomy
, volume: 191, anno: 1997,
parte:, 2
pagine: 201 - 213
SICI:
0021-8782(1997)191:<201:MAMCOO>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
AMYOTROPHIC-LATERAL-SCLEROSIS; MOTOR-NEURON DISEASE; DEVELOPING NEUROMUSCULAR SYSTEM; SHY-DRAGER SYNDROME; HORSERADISH-PEROXIDASE; GAMMA-MOTONEURONS; PUDENDAL NERVE; HORMONAL-CONTROL; MALE-RAT; CAT;
Keywords:
MOTOR NEURONS; SACRAL SPINAL CORD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
51
Recensione:
Indirizzi per estratti:
Citazione:
A.H. Pullen et al., "MORPHOLOGICAL AND MORPHOMETRIC CHARACTERIZATION OF ONUFS NUCLEUS IN THE SPINAL-CORD IN MAN", Journal of Anatomy, 191, 1997, pp. 201-213

Abstract

In the absence of a systematic morphometric study of Onuf's nucleus in man, this investigation defines the limits of variation of segmentalposition and the range of length and volume of Onuf's nucleus in 6 normal humans displaying no neurological disease (2 males, 4 females). Serial section reconstruction methods in conjunction with the bisector method provided information on the numbers, Sizes and shapes of the constituent motor neurons of Onuf's nucleus. In contrast to previous descriptions, the cranial origin of Onuf's nucleus occurred in rostral S1in 50 % of subjects, and midcaudal S1 in the remaining subjects. Onuf's nucleus varied in length between 4 and 1 mm) and was 0.2-0.37 mm(3)in volume. Differences in length or volume between males or females, or between the left and right side of the cord were not statistically significant. Neurons in Onuf's nucleus varied in diameter between 10 mu m and 60 mu m (mean 26 mu m) and their mean number was 625 +/- 137. A higher density of neurons occurred at the cranial and caudal ends ofthe nucleus relative to the middle. While 37 % of neurons mere approximately spherical (shape index similar to 1), 44 % were ellipsoid and 19% fusiform (shape indices varying between 0.26 and 0.8). These findings are compared with previous studies of Onuf's nucleus in man and animals. The results form a basis for further studies on Onuf's nucleus in normality and neurodegenerative diseases.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 18:44:01