| OBO ID: GO:0097225 |
| Term Name: | sperm midpiece | Search Ontology: | |
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| Definition: | The highly organized segment of the sperm flagellum which begins at the connecting piece and is characterized by the presence of 9 outer dense fibers (ODFs) that lie outside each of the 9 outer axonemal microtubule doublets and by a sheath of mitochondria that encloses the ODFs and the axoneme; the midpiece terminates about one-fourth of the way down the sperm flagellum at the annulus, which marks the beginning of the principal piece. | ||
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| Ontology: | GO: Cellular Component QuickGO AmiGO |
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EXPRESSION
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