Biology

Human Reproduction and Contraception

736 Questions

Human reproduction and contraception focus on the menstrual cycle, hormonal changes, pregnancy, and various contraceptive methods. These topics are frequently asked in general science sections. Practice these questions to master the fundamentals of reproductive health.

Menstrual cycle phasesMenopause and hormonesReproductive health problemsContraceptive methods overview

Human Reproduction and Contraception Questions

Multiple choice

Patients having an intrauterine device are at decreased risk of ectopic pregnancy. The most common site for implantation in ectopic pregnancy is ___________.

  1. ovary

  2. mesentery

  3. internal os of the uterus

  4. cervix

  5. uterine tube
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The most common site of ectopic implantation is the uterine tube. The growth of the embryo in this site usually causes rupture of the tube and severe hemorrhage in the mother. Abdominally, an ectopic pregnancy often occurs in the rectouterine pouch, an area between the uterus and the rectum.

Multiple choice

The gynoecium is inferior in

  1. hypogynous condition

  2. perigynous condition

  3. epigynous condition

  4. cup-shaped perigynous condition

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In epigynous condition, ovary is inferior and other floral organs are superior.

Multiple choice

Match the 'Sex hormones' in Group - I with 'their roles' in Group - II.

 
Group - I Group - II
P. HCG 1. Secretion of kisspeptin
Q. Relaxin 2. Birth process
R. Estrogen 3. Promotes ovulation
S. LH 4. Prevents the deterioration of corpus luteum

  1. P - 1, Q - 4, R - 2, S - 3

  2. P - 4, Q - 2, R - 1, S - 3

  3. P - 3, Q - 2, R - 1, S - 4

  4. P - 4, Q - 3, R - 2, S - 1

  5. P - 2, Q - 4, R - 1, S - 3
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Correct answer. HCG (human chorionic gonadotropin) prevents the deterioration of the corpus luteum at the end of the fourth week and enables pregnancy to continue beyond the end of the normal menstrual cycle. Relaxin promotes angiogenesis, and in humans it probably plays a more important role in the development of the interface between the uterus and the placenta that it does in the birth process. High levels of estrogen inhibit the secretion of kisspeptin and suppress further production of those hormones. LH (luteinizing hormone) promotes ovulation, the release of the secondary oocyte into the fallopian tube. Hence, the correct sequence of codes is P - 4, Q - 2, R - 1, S - 3.

Multiple choice

Corpus luteum is responsible for ____.

  1. retention of pregnancy

  2. child birth

  3. ovulation

  4. milk production
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The corpus luteum secretes progesterone, which maintains the endometrial lining for potential embryo implantation and supports early pregnancy until the placenta takes over. This function is essential for 'retention of pregnancy'. Childbirth is triggered by oxytocin, ovulation is caused by LH surge, and milk production is stimulated by prolactin - not corpus luteum functions.

Multiple choice

Which among the following statements does NOT characterise normal menstrual cycle in females?

  1. Estrogen builds up the lining of the uterus.

  2. Progesterone secretion decreases after ovulation.

  3. A drop in progesterone causes the lining to break down.

  4. The menstrual cycle is from day 1 of bleeding to day 1 of the next time of bleeding.

  5. About once a month, the uterus grows a new lining to get ready for a fertilised egg.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Progesterone secretion increases after an ovary releases an egg (ovulation) at the middle of the cycle. This helps the estrogen keep the lining thick and ready for a fertilised egg.

Multiple choice

Why many adolescents get acne and pimples at the time of puberty?

  1. Because of irregular sex hormones

  2. Because of development of secondary sex organs

  3. Because of reproductive maturity

  4. Because of increased activity of sebaceous and sweat glands
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The reason why many adolescents get acne and pimples at the time of puberty is because of increased activity of sebaceous or oil and sweat glands.

Multiple choice

Mrs. Amrita is a heart patient. Which of the following is not a suitable contraceptive for her?

  1. IUCD

  2. Cervical cap

  3. Diaphragm

  4. Contraceptive sponge

  5. Oral contraceptives
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Oral contraceptives contain synthetic hormones. They contain both estrogen and progestin and mainly work by preventing ovulation and by making the lining of the uterus thinner. Hormonal contraceptives are best avoided in case of heart patients.

Multiple choice

An intrauterine device is a long term birth control method. Which of the following statements regarding the intrauterine device is INCORRECT?

  1. The hormonal IUDs may stop menstruation altogether.

  2. An intrauterine device is inserted into the vagina.

  3. Copper acts as a spermicide within the uterus.

  4. Other shapes of IUD are held in place by a suture to the fundus of the uterus.

  5. Most copper IUDs have a plastic T-shaped frame.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An intrauterine device is a small contraceptive device, often 'T'-shaped and containing either copper or levonorgestrel, which is inserted into the uterus.