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单词 θ18929
释义
the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > sperm > sperm cell > constituents or stages (5)
acrosome1899

A membrane-bound, darkly staining, granular structure surrounding the anterior end of the nucleus in a spermatozoon, containing enzymes that assist…

idiosome1899

Cell Biology. A distinct spheroidal region of the cytoplasm surrounding the centrioles in the developing germ cells of animals, containing granules…

idiozome1899

= idiosome, n. 2.

acroblast1907

Cell Biology. A precursor of the acrosome in a maturing spermatid. Now rare.

centromere1925

The neck region of a sperm cell. Obsolete. rare.

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