Question:
Placental hormone include
A. PMSG
B. HCG
C. Placental lactogen (PL)
D. TSH
Choose the correct answer from the options given below:
Placental hormone include
A. PMSG
B. HCG
C. Placental lactogen (PL)
D. TSH
Choose the correct answer from the options given below:
A. PMSG
B. HCG
C. Placental lactogen (PL)
D. TSH
Choose the correct answer from the options given below:
Show Hint
Placental Hormones: eCG PMSG (Equine), hCG (Primate), Placental Lactogen bPL (Ruminants), Progesterone, Estrogens. TSH is Pituitary.
Updated On: Sep 7, 2026
- A only
- A and B only
- A, B and C only
- A, B, C and D only
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Comparative placental endocrinology: mammalian chorioallantoic extraembryonic membranes synthesize specialized gonadotropins, somatomammotropins, and steroids.
Step 2: Detailed Explanation:
Endocrinology of the placenta across mammalian species:
1. A. PMSG (eCG Pregnant Mare Serum Gonadotropin): Synthesized by equine endometrial cups (fetal trophoblast origin).
2. B. HCG (Human Chorionic Gonadotropin): Synthesized by human syncytiotrophoblasts.
3. C. Placental Lactogen (PL Chorionic Somatomammotropin): Synthesized by binucleate trophoblast giant cells in ruminant (bovine/ovine) and rodent placentas.
4. D. TSH (Thyroid Stimulating Hormone): Synthesized exclusively by the anterior pituitary gland, not the placenta.
Thus, placental hormones include A, B, and C only.
Step 3: Final Answer:
Therefore, placental hormones include A, B and C only, corresponding to option (C).
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