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The signals for parturition orginate fro...

The signals for parturition orginate from:

A

Fully developed foetus

B

Placenta

C

Both (A) & (B)

D

Uterus

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The correct Answer is:
C
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The signals for parturition originate from the fully developed foetus only. (True/false)

A : Corticotrophin releasing hormone is a a part of the clock that establishes the timing of birth . R : The signals for parturition originate from the fully developed foetus and placenta which induce mild uterine contractions called foetal ejection reflex .

Read following statements (a-d) and choose the option with only correct statements. a. Parturition occurs due to a complex neuroendocrine mechanism at the end of gestation period. b. The signals for parturition originate from fully developed foetus and placenta which induces mild uterine contraction. c. Foetal ejection reflex triggers release of oxytocin from foetal pituitary. d. Oxytocin reduces uterine contraction under positive feedback control and causes expulsion of placenta followed by foetus known as parturition. a and b b and c c and d a and d

signals for parturition originate from

Signals for parturition originate from

Signals for parturition originate from

MOTION-HUMAN REPRODUCTION -EXERCISE - 2 (NCERT BASED QUESTIONS)
  1. Placenta contains:-

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  2. The average duration of human pregnancy is about nine months which is ...

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  3. The signals for parturition orginate from:

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  4. Which hormone acts on the uterine contraction during parturition?

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  5. Which gland of female undergo differentiation during pregnancy?

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  6. Which is correct for colostrum?

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  7. What would happen if vasa deferentia of man are cut?

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  8. If the epididymis is being removed, then what will happen ?

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  9. Which is not correct about sustentacular cells

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  10. Somatic chromosome number is 40. what shall be chromosome number in th...

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  11. If cowper's gland is removed which of the following will be affected

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  12. Which of the following releases inhibin to control spermatogenesis ?

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  13. The sperm producing substance of enzymatic nature of sperm lysin. In m...

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  14. Correct order of spermatogenesis is :-

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  15. Hyaluronic acid which binds corona radiata cells is a :-

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  16. How many secondary spermatocytes will form 400 spermatozoa :-

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  17. In which of the following animals the sperm can survive for a longer p...

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  18. At which stage of spermatogenesis sperm acquire their whole structural...

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  19. An egg of bird was coated with varnish and then incubated . The egg di...

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  20. How many sperm and ova will be formed from 50 secondary oocytes and 50...

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