mitochondrial sheath

mi·to·chon·dri·al sheath

the spirally arranged mitochondria in the middle piece of a spermatozoon; provides energy for the movement of the tail.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
In human sperm, the mitochondrial sheath is organized in a helix of approximately 13 gyres surrounding the axoneme in the midpiece.
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