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Signals for parturition originate from...

Signals for parturition originate from

A

Fully developed foetus only

B

Both placenta as well as fully developed foetus

C

Oxytocin released from maternal pituitary

D

Placenta only

Text Solution

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The correct Answer is:
B
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Explore conceptually related problems

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

From a to d which of the following statements are correct ? (a) Fertilisation can occur only if the ovum and sperm are transported simultaneously to the ampullary isthmic junction (b) First movement of foetus and appearance of hair on head are usually observed during the fifth month of pregnancy . (c) On 14^(th) day of Menstrual cycle , the level of progesterone is maximum . (d) The signals for parturition originate from fully developed foetus and placenta

The signals for parturition orginate from:

Read the following statement (a) Inhibitory proteins are released by epididymis which conserve energyof sperms. (b) Epididymis provides more ATP energy to sperms. (c ) The signals of parturition originate from placenta and CNS. (d) Lactational amenorrhea is used as contraception. How many of the above statement are correct ?

State from where do the signals for parturition originate in human females.

Read the following statements carefully and select the correct statements. (i) hPL plays a major role in parturition. (ii) Fetus shows movements first time in the 7^(th) months of pregenancy. (iii) Signal for parturition comes from fully developed fetus and placenta. (iv) Embryo's hearth is formed by the 3^(rd) month of pregency.

During parturition

Parturition occurs

PHYSICS WALLAH-HUMAN REPRODUCTION-NEET PAST 10 YEARS QUESTIONS
  1. Fertilisation in humans is practically feasible only if

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  2. The shared terminal duct of the reproductive and urinary system in the...

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  3. Which of these is not and important component of initiation of parturi...

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  4. Capacitation refers to changes in the

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  5. Which of the following cells during gametogenesis is normally diploid?

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  6. In human females, meiosis-II is not completed until

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  7. Which of the following layers in an antral follicle is acellular?

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  8. Which of the following events is not associated with ovulation in huma...

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  9. Select the correct option describing gonadotropin activity in a normal...

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  10. The main function of mammalian corpus luteum is to produce:

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  11. What is the correct sequence of sperm formation?

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  12. Menstrual flow occurs due to lack of

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  13. The secretory phase in the human menstrual cycle is also called

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  14. Identify the human development stage shown below as well as the relate...

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  15. Signals for parturition originate from

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  16. The leydig cells as found in the human body are the secretory source ...

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  17. In a normal pregnant woman, the amount of total gonadotropin activity ...

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  18. Which one of the following statements is false in respect of viability...

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  19. About which day in a normal human menstrual cycle does rapid secretion...

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  20. What happens during fertilisation in humans after many sperms re...

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