Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/07/23 23:28:37」(JST)

wiki en

In mammals, the neurocranium or braincase is the back part of the skull and houses the brain. In front of it is the interorbital region.

In humans, the neurocranium is (also) the upper portion of the skull. The other, lower part of the skull is the viscerocranium.

Evolutionarily, the human neurocranium has turned from being (just) the back part to (also) being the upper part, because during the evolutionary expansion of the brain, the neurocranium has overgrown the viscerocranium. The upper-frontmost part of the cranium also houses the evolutionarily newest part of the human brain, the frontal lobes.

The term "cranium" can be ambiguous in that it can refer to the neurocranium, or the whole skull, meaning the neurocranium and the facial skeleton.

References

This musculoskeletal system article is a stub. You can help Wikipedia by expanding it.

English Journal

A new OH5 reconstruction with an assessment of its uncertainty.

Benazzi S, Bookstein FL, Strait DS, Weber GW.SourceDepartment of Anthropology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria.
Journal of human evolution.J Hum Evol.2011 Jul;61(1):75-88. Epub 2011 Apr 3.
The OH5 cranium, holotype of Paranthropus boisei consists of two main portions that do not fit together: the extensively reconstructed face and a portion of the neurocranium. A physical reconstruction of the cranium was carried out by Tobias in 1967, who did not discuss problems related to deformati
PMID 21463886

Japanese Journal

頭蓋底軟骨結合 -その成長を調節する分子メカニズムと異常-

永山元彦,Eiki Koyama,渋川義宏,中澤純子,今泉佳宣,塚原隆司,日下義章,大友克之,竹内宏
岐阜歯科学会雑誌 35(3), 96-104, 2009-02-20
頭蓋底は頭蓋骨の一部として脳と頭頚顔面骨の間に神経頭蓋底として存在する.この骨化様式は軟骨性骨化であり,同時に頭蓋底を構成する骨の成長を制御することになる.ヒトの場合,頭蓋底は後頭骨基底部,蝶形骨,篩骨ならびに前頭骨から構成される.頭蓋底には軟骨結合と呼ばれる非常に特徴的な軟骨組織がこれら骨間に存在し,骨化成長点として,特に前後軸方向への頭蓋底の伸長に寄与すると同時に,頭蓋顔面骨の成長全体に重要な …
NAID 110007491630