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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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पाठ 2: Human Reproduction - EXERCISES [पृष्ठ ४०]

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

संबंधित प्रश्‍न

Mention the functions of Uterus in the human female reproductive system.


Draw a labelled diagram of the female reproductive system.


Name the function of the following:

Endometrium


Name the function of the following:

Sperm tail


Put a tick mark (✓) against the correct alternative in the following statement:

Internally, the uterus opens into:


Complete the paragraph with the help of words given in the bracket.
(Luteinizing hormone, endometrium of uterus, follicle stimulating hormone, estrogen, progesterone, corpus luteum) 

Growth of follicles present in the ovary occurs under the effect of ______. This follicle secretes estrogen. ______ grows/regenerates under the effect of estrogen. Under the effect of ______, fully grown up follicle bursts, ovulation occurs and ______ is formed from remaining part of follicle. It secrets ______ and ______. Under the effect of these hormones, glands of ______ are activated and it becomes ready for implantation.


 The diagram given below represents a system in the human body. Stud the diagram and answer the following questions: 

Mention the number and the name of the part involved in fertilization and implantation from the above diagram. 


Give Reasons

Most often only one embryo is formed at a time although there are two ovaries in women. Explain.


Name the Following

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


Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

The cilia lining the oviduct funnel, push the released ovum into the uterus.


State the Location:

Ovary


Multiple Choice Question:

Sterilization in the female involves cuffing and tying the


Match the parts of the given figure with the correct option.

  1 2 3 4 5
a. Fallopian tube Oviduct Uterus Cervix Vagina
b. Oviduct Cervix Vagina Ovary Vas deferens
c. Ovary Oviduct Uterus Vagina Cervix
d. Fallopian tube Ovary Cervix Uterus Vagina

The implantation of the embryo occurs at about ______ days of fertilization.


______ is homologous to Bartholin's glands.


All are associated with ovulation in human female, EXCEPT


Penis is homologous to ____________.


Identify the layer that makes up the corona radiate.


All are internal genitalia in females. EXCEPT ______.


Which of the following statements regarding human reproduction is INCORRECT?


Which stage is followed after the secondary follicle stage?


Identify the labels (i, ii and iii) in the given diagram of the female reproductive system.


Identify the odd one from the following.


Ovulation occurs under the influence of ______.


Read the following and answer from given below:

Oogenesis is the process of the formation of an ovum in the ovaries. It consists of three phases: multiplication, growth, and maturation. Oogenesis is controlled by hormones GnRH, LH, FSH. GnRH secreted by the hypothalamus stimulates the anterior lobe of the pituitary gland to secrete LH and FSH.

Identify the functions of LH.

  1. Release of a secondary oocyte from Graafian follicle.
  2. Stimulates corpus luteum to secrete progesterone.
  3. Stimulates estrogen formation.
  4. Promotes development of egg to form secondary oocyte.

Which part of the female reproductive system is paired incorrectly with its function?


The ______ is also called the womb.


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

Graafian follicle, ostium, uterus, fallopian tube, ovum.


Choose the odd one out from the group of terms given below and write the category for the remaining terms:


The figure given below is the human female reproductive system. Study the same and answer the following questions.

  1. Label the guidelines 1 to 6 shown in the figure.
  2. What is the normal gestation period in human?
  3. Where are the sperms released during coitus?
  4. Write two important functions of part 2.
  5. Mention the technical term for the fixing of developing zygote to the uterine wall.

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