Roberts G J, Blackwood H J
J Anat. 1983 Mar;136(Pt 2):307-20.
The importance of controlling litter size in growth studies is verified for Rattus norvegicus. A method of studying growth of the cranial base bones in the median sagittal plane is described and figures for growth rate in micrometres per day have been produced for the age range 4-480 days. The age range 4 to 80 days is identified as the period when 50% of growth takes place and therefore as a period which is particularly useful for growth studies. The presence of a caudorostral gradient in growth rate is suggested by the results. The nomenclature of the cell zones in endochondral growth sites is reviewed and the use of the term matrixogenic is offered to describe and identify more accurately one of the functional zones in endochondral growth sites.
对于褐家鼠而言，在生长研究中控制窝仔数的重要性得到了验证。本文描述了一种在正中矢状面研究颅底骨生长的方法，并给出了4至480日龄范围内以微米/天为单位的生长速率数据。4至80日龄被确定为发生50%生长的时期，因此是对生长研究特别有用的时期。结果表明生长速率存在尾向吻侧梯度。本文回顾了软骨内生长部位细胞区的命名，并提出使用“基质生成的”一词来更准确地描述和识别软骨内生长部位的一个功能区。
