Form 5 Biology chapter 2 帮我解答

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cschoung

2012-7-14 06:22 PM

谢谢你的资料^_^
haamster 发表于 14/7/2012 18:16

希望上面的解說可以幫到你咯

`LOVE`

2012-7-14 06:27 PM

回复 `LOVE`

不好意思~ 问你哦~ troacic vertebra 和typical 的样子都好像怎么区分？
haamster 发表于 2012-7-14 05:59 PM

如果没有错 thoracic 有12个骨头
第1,9,10,11,12 - atypical
其他的是typical

其实还有很多characteristic，我缩短了给你比较容易明白
typical的characteristic - Heart shaped, contains 2 costal facets, vertebral foramen is small and circular, large transverse process, spine:long,oblique,directed downwards & backwards

第1个thoracic - body不是heart shape, spine:thick, long & horizontal
第9，10 - 我忘了，因为不是很重要

有时偷工减料一下
第11个 - Body on the lateral aspect has one single complete costal facet, No facet on the anterior surface of transverse process, spine:horizontal
第12个 - Body on the lateral aspect has single complete facet (more on pedicle than on body), shape of the body is similar to those of lumbar vetebrae, transverse process is short, has no facet, has 3 tubercles – superior, inferior and lateral tubercles, spine:horizontal