sylvian fossa
noun
often capitalized 1st S
: a depression that forms in the lateral surface of each embryonic cerebral hemisphere during the third month of development and contains the insula at its bottom which is later covered by the operculum whose edges form the border of the sylvian fissure
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“Sylvian fossa.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/sylvian%20fossa. Accessed 23 Nov. 2024.
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