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Placenta acts as an endocrine tissue. Ju...

Placenta acts as an endocrine tissue. Justify.

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Placenta secretes endocrine hormones such as hCG, oestrogens, progesterone and human placental lactogen.
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Placenta is

Placenta acts as an endocrine tissue and produces several hormones like Human chorionic gonadotropin (hCG) Human placental lactogen (hPL) Estrogens Progesterone

Read the following and select the incorrect statements: A. The placenta acts as a permanent endocrine tissue and produces several hormones. B. During pregnancy levels of cortisol, prolactin, thyroxine, and estrogen hormones also Increase several folds in maternal blood. C. The second meiotic division of secondary oocyte in females is unequal and results in the formation of a polar body. D. The secondary follicle transforms into a tertiary follicle which is characterized by a fluid - filled cavity called the antrum.

What is an endocrine system ?

Endocrine system

A : placenta is connected to the embryo through an umbilical cord which helps in the transport of substance to and from the embryo R : Palcenta acts as an endocrine tissue

Placenta has endocrine functions. Does it have other functions too ? Explain.

Which part of the ovary in mammals acts as an endocrine gland after ovulation ?

ICSE-HUMAN REPRODUCTION-PRACTICE QUESTIONS (VERY SHORT ANSWER TYPE QUESTIONS)
  1. Which germ layer forms CNS?

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  2. Which germ layer forms the skeleton and muscles?

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  3. What is the function of sperm lysins?

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  4. Where does the foetus develop in the female genital tract?

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  5. How does a sperm penetrate through the zona pellusida in human ovum?

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  6. What are Leydig's cells?

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  7. What term is used for the chemicals which occur in sperm's acrosome an...

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  8. What does the blastocoel of mammalian embryo phylogenetically signify ...

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  9. Define spermatogenesis.

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  10. Name the layer of cells which forms the outer wall of blastocoel.

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  11. What is the special structural feature of the epithelial cells that li...

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  12. Which germ layers produce nervous system and kidneys?

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  13. Write one difference between blastos and a gamete.

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  14. Placenta acts as an endocrine tissue. Justify.

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  15. At which stage of life is oogenesis initiated in human female? When do...

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  16. Name the various extraembryonic membranes.

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  17. Which cell organelle is modified to form the acrosome? Name the chemic...

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  18. Differentiate between menarche and menopause

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  19. Where does fertilisation normally take place in a human female?

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  20. At what stage is mammalian embryo implanted in the uterus?

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