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11 Cards in this Set
- Front
- Back
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head
acrosome |
Within the _____ are the chromosomes and a large vesicle called an ________, which contains enzymes and other proteins that enable the sperm to fuse with the egg during fertilization.
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tail
ATP T |
The _____ contains complex machinery make up of proteins that hydrolyze ___ and convert the released chemical energy into motion.
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midpiece
ATP |
The _______ anchors the tail to the head and contains mitochondria, which produce the ____ required for motility.
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seminiferous tubules
spermatogonia |
Spermatogenesis starts near the basement membrane in the ___________ _______ with undifferentiated germ cells called _______________.
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germ cells
spermatogonia |
As ____ ____ migrate from the basal compartment to the lumen of a seminiferous tubule, they undergo various stages of development. The dashed arrow indicates that some ____________ do not differentiate following mitosis and remain as spermatogonia.
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primary spermatocyte
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The spermatogoniums chromosomes are replicated, and the cell differentiates to become a __________ ____________, which has 46 duplicated chromosomes possessing 2 sister chromatids apiece.
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secondary spermatocytes
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The primary spermatocyte goes through meiosis I to yield 2 _________ ___________, which possess 23 duplicated chromosomes.
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spermatids
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Secondary spermatocytes undergo meiosis II to become __________, which have 23 single chromosomes but have not developed the mature sperm's characteristic features.
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spermatozoa
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Spermatids differentiate to become __________ (n), which possess the characteristic head, midpiece and tail.
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seminiferous tubules
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After spermatozoa are formed, they are released into the lumen of the __________ ________.
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molitity
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Sperm aquire _______ only after they have moved from the seminiferous tubules to the epididymis to undergo further maturation.
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