Caudal vertebra：尾椎

l 脊柱:分化程度低,只有軀椎(trunk vertebra)和尾椎(caudal vertebra)之分,椎體為雙凹型椎體. 頭骨:由腦顱與咽顱兩部分組成. 腦顱保護(hù)腦及嗅伊人久久久AⅤ老熟妇、聽、視3種感覺器官,咽顱圍繞與保護(hù)消化道前端部分,分別支持上下頜在线视频国产盗摄、舌及鰓.

cervical vertebra：頸椎

脊柱:分化為頸椎(cervical vertebra),軀干椎,薦椎(sacral vertebra)和尾椎四部; 頸椎(寰椎)一枚,具一對(duì)關(guān)節(jié)窩,與寰椎的枕髁關(guān)節(jié); 軀干椎數(shù)量變化多(7~200 枚) ,多數(shù)前凹型或后凹型,少數(shù)為雙凹型,橫突不發(fā)達(dá),無肋骨; 薦椎一枚,

lumbar vertebra：腰椎

羊膜類,隨著胸廓的發(fā)展,骶骨前椎又進(jìn)一步分化為胸廓前方的頸椎(cervicalvertebra)国产高清肏屄AV、胸廓部的胸椎(thoracic vertebra)和胸廓后方的腰椎(lumbar vertebra).

sacralization of fifth lumber vertebra：第五腰椎骶化

骶尾部畸胎瘤 sacrococcygeal teratoma | 第五腰椎骶化 sacralization of fifth lumber vertebra | 第一腰椎骶化 lumbarization of the first sacral vertebra

spinous process of thorasic vertebra：胸椎棘突

腰椎小面關(guān)節(jié)facet joint of lumber vertebra | 胸椎棘突spinous process of thorasic vertebra | 腹直肌rectus abdominis muscle

spinous process of lumber vertebra：腰椎棘突

頸椎棘突spinous process of cervical vertebra | 腰椎棘突spinous process of lumber vertebra | 薦骨正中(山脊)median sacral crest of sacral bone

sacral vertebra：骶椎

兩棲類由于腰帶的連合,隨之分化出骶椎(sacral vertebra),在骶椎的前后可分別區(qū)分為骶骨前椎(presacral vertebra)和尾椎(caudal vertebra). 羊膜類,隨著胸廓的發(fā)展,骶骨前椎又進(jìn)一步分化為胸廓前方的頸椎(cervicalvertebra)、胸廓部的胸椎(thoracic vertebra)和胸廓后方的腰椎(lumbar vertebra).

vertebrae vertebra：的復(fù)數(shù)

vertebra 脊椎;裝甲波導(dǎo)管 | vertebrae vertebra的復(fù)數(shù) | Vertebrata 脊椎動(dòng)物亞門

Cerrial vertebra disease：頸椎病

椎動(dòng)脈型:Vertebra artery type | 頸椎病:Cerrial vertebra disease | 彎輥:roll bending

procoelous vertebra; procelous vertebra：前凹椎骨

前凹亞目 PROCOELA | 前凹椎骨 procoelous vertebra; procelous vertebra | 突嘴龍(屬) Procolophon