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Benjamin Rush,a physician who also signed the Declaration of Independence,was the first to
Spermatogonia
Undifferentiated male germ cells in the testes that divide to produce sperm.
Spermatids
Immature sperm cells that are the product of spermatogenesis, which will undergo further development to become mature spermatozoa.
Sperm Cells
Sperm cells are male reproductive cells responsible for fertilizing female egg cells to initiate pregnancy.
Chromosomes
Thread-like structures located in the nucleus of animal and plant cells, made of DNA and protein, containing genes.
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