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What is parturition? - Biology

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प्रश्न

What is parturition?

अति संक्षिप्त उत्तर
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उत्तर

Parturition is the process of childbirth, which occurs when the development of the foetus is complete in the mother’s womb.

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अध्याय 3: Human Reproduction - NCERT EXERCISES [पृष्ठ ११७]

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नूतन Biology [English] Class 12 ISC
अध्याय 3 Human Reproduction
NCERT EXERCISES | Q 18. (i) | पृष्ठ ११७

संबंधित प्रश्न

Given here is a section of the female reproductive system of human beings.

Name the parts labelled 1 to 4


Choose the odd one in each of the following: 

Seminiferous tubule; ovum; epididymis; sperm duct; urethra 


Rewrite the terms in the correct order so as to be in a logical sequence.

Sperm duct, penis, testes, sperms, semen.


Sketch the labeled diagram:

Human female reproductive system


Give appropriate term of the following:
The rupture of follicle and release of ovum from the ovary.


Give the functions of the following:
Penis


Why is zona pellucid retained around the egg till it reaches the uterus?


Draw a label diagram.
Draw a sectional view of the human ovary showing the different stages of developing follicles, corpus luteum, and ovulation.


Name the Following

The age or period when the reproductive organs become fully operational.


Name the Following

The hormone that stimulates the contraction of the uterus during childbirth.


Name the Following

Surgical operation of the fallopian tubes in females for family planning.


Write the functional activity of the following structure:

Ovary


Name the part of the human female reproductive system where the following occurs.

Implantation


All are internal genitalia in females. EXCEPT ______.


Identify the layer of the uterine wall that undergoes changes during menstrual cycle.


Which of the following is/are included in the external genitalia of the female reproductive system?


Mark the CORRECT sequence of structures in the breast from the inner to the outer side.


The opening of the vagina is often covered partially by a membrane called ______.


Mark the odd one.


To answer the question, study the graphs below for Subjects 1 and 2 showing different levels of certain hormones.

Which structure in the ovary will remain functional in subject 2?


The ability to reproduce is lost in a female after ______ 


When sperm is deposited into the vagina which route does it travel?


When the foetus is growing inside the uterus it needs nutrients. Which part provides these nutrients?


What is placenta? Mention its role during pregnancy?


Mother gives birth to a baby but the baby has characters of both parents. How is this possible?


______ acts as a birth canal. 


______ receives the sperms and acts as a birth canal during childbirth. 


Name these:

2 hormones secreted from the corpus luteum.


Which hormone facilitates contraction of fallopian tube and uterus to assist movement of sperms towards ampulla?


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