blood-brain barrier
noun
: a naturally occurring barrier created by the modification of brain capillaries (as by reduction in fenestration and formation of tight cell-to-cell contacts) that prevents many substances from leaving the blood and crossing the capillary walls into the brain tissues
Examples of blood-brain barrier in a Sentence
Recent Examples on the Web
However, the team found endocannabinoid receptors in and around the blood-brain barrier.
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William A. Haseltine, Forbes, 25 Mar. 2025
But our brains are designed to keep things out, through something called the blood-brain barrier.
—Megha Satyanarayana, Scientific American, 14 Feb. 2025
Creatine crosses the blood-brain barrier, and neurons can make it within the central nervous system.11
Brain creatine levels may decrease during stressful conditions.
—Melissa Nieves, Verywell Health, 13 Mar. 2025
This occurs when cancer cells migrate through the blood-brain barrier.
—Charna Flam, People.com, 7 Mar. 2025
See All Example Sentences for blood-brain barrier
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William A. Haseltine, Forbes, 25 Mar. 2025
But our brains are designed to keep things out, through something called the blood-brain barrier.
—Megha Satyanarayana, Scientific American, 14 Feb. 2025
Creatine crosses the blood-brain barrier, and neurons can make it within the central nervous system.11
Brain creatine levels may decrease during stressful conditions.
—Melissa Nieves, Verywell Health, 13 Mar. 2025
This occurs when cancer cells migrate through the blood-brain barrier.
—Charna Flam, People.com, 7 Mar. 2025
See All Example Sentences for blood-brain barrier
Cite this Entry
“Blood-brain barrier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blood-brain%20barrier. Accessed 16 Apr. 2025.
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