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Answer: 2. Corpus luteum

The corpus luteum forms from the ruptured Graafian follicle after ovulation, secretes progesterone, and degenerates if there is no pregnancy. It is a temporary endocrine gland.

The pineal gland is permanent. Corpus cardiacum and corpus allatum are endocrine glands of insects, not of humans.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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