third ventricle
noun
: the median unpaired ventricle of the brain bounded by parts of the telencephalon and diencephalon
Examples of third ventricle in a Sentence
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The most significant changes were in cells near the hypothalamus’ third ventricle (V3), critical to regulating vital physiological and behavioral processes, including temperature, hunger and satiety, thirst and fluid balance, sleep-wake cycles, and circadian rhythms.
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New Atlas, 2 Jan. 2025
Colloid brain cysts are benign tumors that develop in or near the third ventricle, which is in the center of the brain.
—Isabella Cueto, STAT, 3 Nov. 2023
The consistent pathology of the disorder allowed von Economo to localize the lethargic symptoms of encephalitis lethargica to the posterior wall of the third ventricle, near the oculomotor nuclei.
—Neuroskeptic, Discover Magazine, 15 Apr. 2018
The other option is a procedure called an endoscopic third ventriculostomy (ETV), which entails placing a tiny hole at the bottom of the third ventricle of the brain so cerebrospinal fluid can drain more easily.
—Korin Miller, Health.com, 7 Dec. 2021
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New Atlas, 2 Jan. 2025
Colloid brain cysts are benign tumors that develop in or near the third ventricle, which is in the center of the brain.
—Isabella Cueto, STAT, 3 Nov. 2023
The consistent pathology of the disorder allowed von Economo to localize the lethargic symptoms of encephalitis lethargica to the posterior wall of the third ventricle, near the oculomotor nuclei.
—Neuroskeptic, Discover Magazine, 15 Apr. 2018
The other option is a procedure called an endoscopic third ventriculostomy (ETV), which entails placing a tiny hole at the bottom of the third ventricle of the brain so cerebrospinal fluid can drain more easily.
—Korin Miller, Health.com, 7 Dec. 2021
Cite this Entry
“Third ventricle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/third%20ventricle. Accessed 22 May. 2025.
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