THE DEVELOPMENT OF THE SPINAL COLUMN OF CHINESE FETUSES
- VernacularTitle:中国人胎儿脊柱的生长发育
- Author:
Chengliang LU
- Publication Type:Journal Article
- Keywords:
Fetal-age;
Primary ossification centre;
Sexual difference;
Vertebral unit;
Regression equation
- From:
Acta Anatomica Sinica
1953;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
The ossification and development of the spinal column in 194 Chinese fetuseswere studied with radiographic method.Fetal age ranged from 12-35 weeks weredivided into 20 groups.The results were as follows:1.A series of data of longitu-dinal growth of cervical,thoracic,lumbar,sacral and coccygeal regions in differentfetal age groups was obtained,and the regression equations were presented.It ispossible to estimate the length of various regions of vertebral column accuratelyaccording to fetal-age.2.The sequence of development of the primary ossificationcentres in sacral and coccygeal regions was found.The regular pattern will be help-ful to determine the fetal-age and the development of bone.It is confirmed thatthe appearance of ossification centres is earlier in female than that in male.Thereis an existence of sexual difference.3.The total length of the thoracic region isalways the longest while that of the lumbar,cervical and sacral being progressivelyshorter.In comparison with the length of average“vertebral unit”,the lumbar isthe longest,cervical the shortest,thoracic is longer than sacral.During the period of12-35 weeks,the sequence of the length increased is lumbar,thoracic,cervical,andsacral,and comparing with original length,it is also lumbar,thoracic,cervical,andsacral.
