secondary ovum

reproduction

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June 17, 2026

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The term "secondary ovum" refers to a specific stage in the process of oogenesis, which is the development of an egg cell in the human female reproductive system. This process begins before a female is born, with all potential egg cells, called primary ova, already present in her ovaries.1

When an egg is released from the ovary (ovulation), it undergoes cell division. This division results in two cells: a larger secondary ovum and a smaller polar body. The secondary ovum then matures within the ovary and is released into the fallopian tube, where it becomes suitable for fertilization by a sperm cell. Meiosis is the specialized cell division that produces these gametes, including the ovum.123

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oogenesis
…and is known as the secondary ovum; the smaller cell is known as a polar body. The secondary ovum grows in the ovary until it reaches maturation; it then breaks loose and is carried into the fallopian tubes. Once in the fallopian tubes, the secondary egg cell is suitable for…
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…and is known as the secondary ovum; the smaller cell is known as a polar body. The secondary ovum grows in the ovary until it reaches maturation; it then breaks loose and is carried into the fallopian tubes. Once in the fallopian tubes, the secondary egg cell is suitable for…
Read More