...There is also a large foramen magnum at the rear midline, which is the place where the cranial cavity and the spinal canal connect. On the anterior and lateral sides of the foramen magnum are a pair of protrusions called the occipital condyles, which form the heads of the joints (atlanto-occipital joints) that connect the spine to the skull. The poet Goethe proposed the theory that the petals and stamens of plants were modified from leaves, and based on the same idea, he claimed that the skull was formed by the fusion and modification of the vertebrae (Goethe's Discourse on the Spine, 1820).... *Some of the terminology explanations that mention the atlanto-occipital joint are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…また後部正中部には大きな大後頭孔があって,頭蓋腔と脊柱管との交通する場所になっている。大後頭孔の前外側には後頭顆(か)という1対の突起があり,脊柱と頭蓋とを結ぶ関節(環椎後頭関節)の関節頭をなしている。 詩人ゲーテは,植物の花弁やしべが葉から変形したものであるとの理論の提唱者であるが,同じ発想から頭骨は脊椎の融合と変形によってできたものだと主張した(ゲーテの脊椎論,1820)。… ※「環椎後頭関節」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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