脊柱 - Columna vertebralis

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一般用語 > Osteology > 軸骨格 > 脊柱

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翻訳

説明

The vertebral column, also known as the backbone or spine, is part of the axial skeleton. The vertebral column is the defining characteristic of a vertebrate, in which the notochord (a flexible rod of uniform composition) found in all chordates has been replaced by a segmented series of bones (vertebrae) separated by intervertebral discs. The vertebral column houses the spinal canal, a cavity that encloses and protects the spinal cord.

The number of vertebrae differ between species. Here are different vertebral formulae (note that all mammals have seven cervical vertebrae):

  • Dogs: C7 T13 L7 S3 Cd20
  • Horses: C7 T18 L6 S5 Cd15-21
  • Bovine: C7 T13 L6 S5 Cd18-20
  • Ovine: C7 T13 L6-7 S4 Cd16-20
  • Pigs: C7 T14-15 L6 S4 Cd20-23

Text by Antoine Micheau, MD - Copyright IMAIOS
This definition incorporates text from the wikipedia website - Wikipedia: The free encyclopedia. (2004, July 22). FL: Wikimedia Foundation, Inc. Retrieved August 10, 2004, from http://www.wikipedia.org

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