Last Updated
：2025/12/05
Needham's sac
（ plural ）
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Part of the reproductive tract of cephalopods in which spermatophores are stored, opening into the left side of the mantle cavity.
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Needham's sac
During the dissection, the researchers found that Needham's sac opened into the left side of the mantle cavity and contained several spermatophores.
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During the dissection, the researchers found that Needham's sac opened into the left side of the mantle cavity and contained several spermatophores.
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