The mammalian corpus luteum produces

Options

A. Luteoteropic hormone
B. Luteinizing hormone
C. Estrogen
D. Progesterone

Answer

**Step-by-Step Solution:**

1. **Identify the Structure**: The mammalian corpus luteum is a temporary endocrine structure that forms in the ovary after ovulation.

2. **Understand its Function**: The primary function of the corpus luteum is to produce hormones that are crucial for maintaining pregnancy.

3. **Hormones Produced**: The corpus luteum primarily secretes two hormones:
- **Progesterone**: This hormone is vital for preparing the endometrium (the lining of the uterus) for a potential implantation of a fertilized egg. It helps maintain the endometrium during the early stages of pregnancy.
- **Relaxin**: This hormone is secreted during pregnancy and helps to relax the uterine muscles and prepare the body for childbirth.

4. **Evaluate the Options**: The question provides several options regarding what the corpus luteum produces:
- Luteotropic hormone: Incorrect
- Luteinizing hormone: Incorrect
- Estrogen: Incorrect
- Progesterone: Correct

5. **Conclusion**: Based on the functions and hormones produced by the corpus luteum, the correct answer to the question is **progesterone**.

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