neural arch

noun

Definition of neural arch

anatomy
: an arch of bone or cartilage of a vertebra that is situated posterior to a vertebral body, is formed by the fusion of two pedicles and two laminae, and along with the back portion of the vertebral body forms a vertebral foramen through which the spinal cord passes The neural arch puts limits on the range of a spine's movement with pairs of interlocking tabs known as zygapophyses.— Carl Zimmer

called also vertebral arch

Examples of neural arch in a Sentence

Recent Examples on the Web Two pretty small somethings—a neural arch from a Brachychampsa spine and a tooth fragment with a so-far-unknown origin. Jennifer Billock, Smithsonian, "Want to Dig For Dinosaur Bones? Join the Pros at These Spots," 25 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'neural arch.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of neural arch

1843, in the meaning defined above

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The first known use of neural arch was in 1843

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Cite this Entry

“Neural arch.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/neural%20arch. Accessed 25 January 2020.

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More Definitions for neural arch

neural arch

noun

Medical Definition of neural arch

: an arch of bone or cartilage of a vertebra that is situated posterior to a vertebral body, is formed by the fusion of two pedicles and two laminae, and along with the back portion of the vertebral body forms a vertebral foramen through which the spinal cord passes The neural arch puts limits on the range of a spine's movement with pairs of interlocking tabs known as zygapophyses.— Carl Zimmer

called also vertebral arch

More from Merriam-Webster on neural arch

Britannica.com: Encyclopedia article about neural arch

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