spinal cord

noun

: the cord of nervous tissue that extends from the brain lengthwise along the back in the spinal canal, gives off the pairs of spinal nerves, carries impulses to and from the brain, and serves as a center for initiating and coordinating many reflex acts see brain illustration

Examples of spinal cord in a Sentence

Recent Examples on the Web This puts them at higher risk of having children born with birth defects of the brain and spinal cord, most commonly spina bifida and anencephaly. Ana B. Ibarra, The Mercury News, 15 Apr. 2024 Also known as Lou Gehrig’s disease, ALS attacks nerve cells in the brain and spinal cord, leading to a loss of muscle control that often leaves patients prisoners in their own bodies, unable to move, speak, swallow and, eventually, even breathe. Dave Quinn, Peoplemag, 6 Apr. 2024 While this illness can have severe symptoms, including death, a serious infection commonly called meningitis can form in the lining of the brain and spinal cord and bloodstream, according to the CDC. USA TODAY, 30 Mar. 2024 Meningococcal meningitis is when tissue covering the brain and spinal cord becomes infected and swollen. Sara Moniuszko, CBS News, 29 Mar. 2024 And in 2011 she was diagnosed with multiple sclerosis, a disorder in which the body’s immune system attacks the protective covering of the nerve cells in the brain, optic nerve and spinal cord. Rick Mauch, Fort Worth Star-Telegram, 28 Mar. 2024 Additionally, any severe damage or injuries to the spinal cord can potentially cause night sweats. Dominique Fluker, Essence, 13 Mar. 2024 Antihistamines work by binding to histamine receptors on the brain, spinal cord, smooth muscles, and other tissues of the body. Daniel More, Verywell Health, 9 Mar. 2024 Yet he’s still asked whether there are any new ways to treat spinal cord injuries or paralysis caused by gun violence. Karen Garcia, Los Angeles Times, 3 Apr. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'spinal cord.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1834, in the meaning defined above

Time Traveler
The first known use of spinal cord was in 1834

Dictionary Entries Near spinal cord

Cite this Entry

“Spinal cord.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spinal%20cord. Accessed 23 Apr. 2024.

Kids Definition

spinal cord

noun
: the cord of nervous tissue that extends from the brain along the back in the cavity of the backbone, branches to form the spinal nerves, carries nerve impulses to and from the brain, and helps to control reflex actions

Medical Definition

spinal cord

noun
: the thick longitudinal cord of nervous tissue that in vertebrates extends along the back dorsal to the bodies of the vertebrae and is enclosed in the spinal canal formed by their neural arches, is continuous anteriorly with the medulla oblongata, gives off at intervals pairs of spinal nerves to the various parts of the trunk and limbs, serves not only as a pathway for nerve impulses to and from the brain but as a center for carrying out and coordinating many reflex actions independently of the brain, and is composed largely of white matter arranged in columns and tracts of longitudinal fibers about a large central core of gray matter somewhat H-shaped in cross section and pierced centrally by a small longitudinal canal continuous with the ventricles of the brain

called also medulla spinalis

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