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About which day in a normal human menstr...

About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occurs?

A

14th day

B

20th day

C

5th day

D

11th day

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The correct Answer is:
A
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About which day in a normal human menstrual cycle does rapid secretion of LF (popularly called LF surge). Normally occurs?

Ovulation in the human female normally takes place during the menstrual cycle

Refer to the given schematic representation of menstrual cycle showing three phases I,II and III. (i) FSH secreted by the anterior pituitary stimulates the ovarian follicle to secrete estrogen which stimulates the proliferation of the endometrium. (ii) LH secre3ted by the anterior pituitary stimulates the development of corpus luteum which secretes progesterone. (iii) Reduced production of LH from anterior pituitary causes degeneration of corpus luteum, thereby progesterone production is reduced.

Read the statements A and B and identify the correct choice from those given: Statement A: Women are at the peak of conceptionon the 14th day of menstrual cycle Statement B : Vasectomy is the method normally, employed to avoid conception in females.

Go through the following statements (i) Mammary glands are modified sweat glands and each mammary gland consists of 15-25 lobules of the compund tubulo-alveolar type. (ii) The tertiary follicle is characterised by a fluid filled cavity called antrum (iii) Both LH and FSH attain a peak level towareds the middle of teh menstrual cycle (iv). In oogenesis, both first and second meiotic divison are unequal Which of these are correct?

Which of the following statements about he female reproductive system are true (+) or false (-)? 1. Both FSH and LH are necessary for ovulation to take place. 2. Oestrogen tends to inhibit the production of FSH b the anterior pituitary gland. 3. Fertilization of the ovum by the spermatozoon normally takes place in the uterus. 4. Progesterone production is largely under the control of LH 5. Throughout the part of the menstrual cycle that follows ovulation, there is a slight risein body temperature.

Go through the following statement (i) Relaxin produced by the ovary, facilitates delivery of the foetus by softening the connective tissue of pubic symphysis and relaxing the pelvic ligaments and joints. (ii) By the end of fifth month of pregnancy, the foetus develops limbs and digits. (iii) Thalidomide is a teratogenic drug which causes a condition called phocomelia. (iv). Although the levels of prolactin are high during pregnancy, milk secretion does not occur because of the high oestrogen and progesterone levels which make the breast unresponsive to the prolactin. Which of these are correct?

The events of the menstrual cycle are represented below. Answer the questions following the diagram. (i)State the levels of FSH , LH and Progesterone simply by mentioning high or low , around 13th and 14th day and 21st to 23 rd day . (ii)In which of the above mentioned phases does the egg travel to the fallopian tube ? (iii)Why is there no menstruation upon fertilization ?

Some important events in the human female reproductive cycle are given below. Arrange the events in a proper squence. A- Secretion of FSH, B - Growth of corpus luteum, C- Growth of the follicle and oogenesis, D- Ovulation E - Sudden increase in the levels of LH.

Find the correct answers about LH in females 1. Facilitates luteinisation of granulosa cells of ovulated follicle 2. Called ovulation hormone 3. Helps in milk secretion 4. Activates Leydig cells to secrete androgen. (a) 1,2,3 correct (b) 1,2 correct (c) 2,4 correct (d) 1,3 correct

TRUEMAN BIOLOGY-HUMAN REPRODUCTION-Multiple Choice Questions
  1. In human female the blastocyst:

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  2. What happens during fertilization in humans after many sperms reach cl...

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

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

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

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  6. Bartholin's glands are situated:

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  7. Placenta in human beings is formed by :

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  8. Which gland secretes alkaline mucus in urethra to neutralise the acidi...

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  9. A temporary endocrine gland in humans is

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  10. Braxton Hicks contraction occur during

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  11. Correct sequence of human embryonic development is

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  12. Onset of menstrual cycle in female anthrapoid primates is

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  13. Thick yellow,high protein fluid produced by mammary glands of a woman ...

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  14. Which hormones is produced in women during pregnancy?

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  15. Menstrual phase is followed by

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  16. Which layer of uterus undergoes cyclic changes during menstrual cycle

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  17. Which type of germ cells contain 23 chromosomes

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  18. In human females, menstrual cycle ceases around 50 years of age. It is...

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  19. Which hormone is mainly secreted by corpus luteum ?

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  20. The internal cavity commonly formed by cell division prior to gastrula...

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