Which of the following structure is necessary for maintenance of pregnancy before placental development? mcq given below:
Q. Which of the following structure is necessary for maintenance of pregnancy before placental development?(a) Hypothalamus / |
| Do you Agree with Answer comment below |
🤰 Structure Essential for Early Pregnancy
✅ Answer: (d) Corpus Luteum
📖 What is Pregnancy Maintenance?
Maintenance means keeping the pregnancy healthy and continuing normally.
👉 During early pregnancy, the developing embryo needs hormonal support to survive.
🌕 What is Corpus Luteum?
Corpus = Body
Luteum = Yellow
👉 The corpus luteum is a temporary yellow gland formed in the ovary after ovulation.
It develops from the ruptured ovarian follicle after the egg is released.
🩺 Why is it Important in Early Pregnancy?
The corpus luteum produces progesterone.
Progesterone helps:
- Maintain the uterine lining
- Support implantation of the embryo
- Prevent uterine contractions
- Maintain pregnancy during the first few weeks
👉 Before the placenta becomes fully functional, the corpus luteum is the main source of progesterone.
🍼 What Happens Later?
Around 10–12 weeks of pregnancy, the placenta takes over progesterone production.
👉 After that, the corpus luteum is no longer essential.
❌ Why Other Options Are Wrong?
(a) Hypothalamus
Controls many hormones but does not directly maintain early pregnancy.
(b) Umbilical Cord
Develops later and connects the fetus to the placenta.
(c) Pituitary
Produces several hormones, but the key structure maintaining early pregnancy is the corpus luteum.
Early Pregnancy → Progesterone Needed → Corpus Luteum Provides It
📌 Disclaimer: For nursing exam preparation only. Follow standard obstetrics and physiology textbooks for detailed concepts.
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