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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

What is parturition?

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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 2: Human Reproduction - EXERCISES [पृष्ठ ४०]

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एनसीईआरटी Biology [English] Class 12
अध्याय 2 Human Reproduction
EXERCISES | Q 18. a | पृष्ठ ४०
नूतन Biology [English] Class 12 ISC
अध्याय 2 Human Reproduction
NCERT EXERCISES | Q 18. (i) | पृष्ठ ११७

संबंधित प्रश्न

Write two major functions of ovary.


Where in the fallopian tube does fertilization occur in humans?


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

Sperm duct, penis, testes, sperms, semen.


What is hymne? 


Give appropriate term of the following:
The monthly discharge of blood and disintegrated uterine tissues in human female.


The diagram alongside is the vertical section of female reproductive organs. Study the diagram and answer the questions that follow: 
(i) Name the fully developed part of ovary containing the ovum. (ii) Name the organ of the female body in which the foetus develops. 
(iii) What is ovulation? 
(iv) Which two hormones are secreted by ovary? 


Name the following:
 The organ of female in which the foetus develops.


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


Draw a sectional view of the human ovary. Label the following parts :

(i) Primary Follicle
(ii) Secondary oocyte
(iii) Graafian follicle
(iv) Corpus luteum

Write the functional activity of the following structure:

Inguinal canal


Write the functional activity of the following structure:

Graafian follicle


The stalk of the ovule is called a pedicle.


Identify the distal narrow part of the duct opening into the uterus.


All are associated with ovulation in human female, EXCEPT


How many lobes are generally present in each mammary gland?


Which one is correct for mammalian testis?


In oocyte secondary maturation occurs in ______.


The external genitalia of the human female is called ______.


Mark the odd one.


The ability to reproduce is lost in a female after ______ 


What changes are observed in the uterus subsequent to the implantation of a young embryo?


What is placenta? Mention its role during pregnancy?


What are various ways to avoid pregnancy? Elaborate any one method.


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


Give reason:

Uterine lining becomes thick and spongy after fertilisation.


The vaginal orifice is covered by a fold of membrane called hymen ______.


Bartholin's glands are homologous to ______.


Given below is a certain situation. Analyze and describe its possible impact on a person:

Egg is not fertilised in a human female.


Name these:

2 hormones secreted from the corpus luteum.


Distinguish between the following pair:

Spermatogenesis and oogenesis


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