Comprehension

The reproductive cycle of female primates is called the menstrual cycle. Menstrual cycle starts only after attaining sexual maturation (puberty). Generally, during ovu lation only one ovum is released per menstrual cycle. The cyclical changes in the ovary and the uterus during menstrual cycle are induced by changes in the levels of pituitary and ovarian hormones. After coitus, sperms are transported to the junction of the isthmus and ampulla, where the sperm fertilises the ovum leading to formation of a diploid zygote.

Question: 1

Which of the following does not constitute accessory duct of female reproductive system?

Updated On: Nov 6, 2024
  • Fallopian tubes
  • Uterus
  • Cervix
  • Vagina
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The Correct Option is B

Solution and Explanation

Accessory ducts in the female reproductive system include the Fallopian tubes, cervix, and vagina, which help transport gametes and support fertilization. The uterus, however, serves as the site for embryo implantation and fetal development rather than acting as an accessory duct.
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Question: 2

The female external genitalia include:
(A) Mons pubis
(B) Hymen
(C) Mammary ducts
(D) Clitoris
(E) Cervix
Choose the correct answer from the options given below:

Updated On: Nov 6, 2024
  • (A), (C) and (D) only
  • (B), (D) and (E) only
  • (A), (B) and (D) only
  • (C), (D) and (E) only
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The Correct Option is C

Solution and Explanation

The female external genitalia, collectively known as the vulva, include the mons pubis, hymen, clitoris, and labia. Mammary ducts are part of the mammary glands and are associated with lactation, not the external genitalia. The cervix is an internal structure connecting the uterus to the vagina.
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Question: 3

Select the organ of the female reproductive system where the sperm is not transported at the time of coitus:

Updated On: Nov 6, 2024
  • Cervix
  • Ovary
  • Uterus
  • Fallopian tube
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The Correct Option is B

Solution and Explanation

During coitus, sperm is deposited in the vagina and travels through the cervix, uterus, and into the Fallopian tubes. The ovary is not directly involved in this pathway, as it is the site of egg release, not sperm transport.
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Question: 4

Which of the following does not take place before ovulation in human females?

Updated On: Nov 6, 2024
  • The secretion of LH and FSH increases during the follicular phase.
  • The corpus luteum secretes large amounts of progesterone.
  • LH and FSH attain peak levels in the middle of the cycle.
  • Maximum secretion of LH induces rupture of the Graafian follicle.
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The Correct Option is B

Solution and Explanation

Progesterone is primarily secreted by the corpus luteum after ovulation. During the follicular phase (before ovulation), estrogen is the predominant hormone, while LH and FSH levels peak just before ovulation to stimulate follicle rupture.
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Question: 5

Match List-I with List-II:
List-I (Phase of menstrual cycle)List-II (Days of menstrual cycle)
(A) Proliferative phase(I) 14th day
(B) Menstrual phase(II) 15th–28th/29th days
(C) Secretory phase(III) 1st–5th days
(D) Ovulatory phase(IV) 5th–13th days
Choose the correct answer from the options given below:

Updated On: Nov 6, 2024
  • (A) - (II), (B) - (IV), (C) - (III), (D) - (I)
  • (A) - (III), (B) - (II), (C) - (I), (D) - (IV)
  • (A) - (IV), (B) - (III), (C) - (II), (D) - (I)
  • (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
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The Correct Option is C

Solution and Explanation

The correct matches are as follows: Proliferative phase (5th–13th days), Menstrual phase (1st–5th days), Secretory phase (15th–28th days), and Ovulatory phase (14th day). These phases correspond to different hormonal and structural changes in the menstrual cycle.
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