Advertisements
Advertisements
Question
Comment on the role of placenta as an endocrine gland.
Advertisements
Solution
Placenta acts as an endocrine gland and produces the human chorionic gonadotropins, human placental lactogen, oestrogen, progesterone and relaxin (later stages of pregnancy). These hormones support foetal growth and help in the maintenance of pregnancy. Hormones like oestrogen, progestogen, cortisol and prolactin are increased several folds in the maternal blood.
APPEARS IN
RELATED QUESTIONS
When and where do chorionic villi appear in humans?
Mention any two functions of the human placenta.
Eye lens is formed from ______.
Which of the following hormones is not a secretory product of human placenta?
To answer the question, study the graphs below for Subjects 1 and 2 showing different levels of certain hormones.


Subject 2 has a higher level of hormone B, which is ______
Several hormones like HCG, HPL estrogen, and progesterone are produced by ______.
Placenta is
Assertion: Functional ADA cDNA genes must be inserted in the lymphocytes at the early embryonic stage.
Reason: Cells in the embryonic stage are mortal, differentiated and easy to manipulate.
The diagram given below represents a specific stage of human embryonic development. Identify the stage.

Assertion A: Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.
Reason R: Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby.
In the light of the above statements, choose the most appropriate answer from the options given below:
