Human reproduction – organs, menstrual cycle, ART methods - One Line Questions

1. The menstrual phase, characterized by the shedding of the uterine lining, typically lasts for how many days? — 3-7 days
2. What is the typical duration of a standard human menstrual cycle, from the first day of one period to the first day of the next? — 28 days
3. The average number of days for the follicular phase of the menstrual cycle is approximately: — 14 days
4. The average number of days for the luteal phase of the menstrual cycle is approximately: — 14 days
5. The menstrual cycle is regulated by a complex interplay of hormones from the hypothalamus, pituitary gland, and: — Ovaries
6. Which of the following is a common reason for using IVF? — All of the above
7. The muscular organ where a fertilized egg implants and develops during pregnancy is called the: — Uterus
8. The muscular tube that connects the uterus to the outside of the body is the: — Vagina
9. During the luteal phase, the corpus luteum secretes progesterone, which has a crucial role in: — Preparing the endometrium for implantation
10. The male reproductive organ responsible for producing sperm and male sex hormones like testosterone is the: — Testis
11. Ovulation, the release of a mature egg from the ovary, is typically triggered by a surge in which hormone? — Luteinizing hormone (LH)
12. Which structure in the female reproductive system is primarily responsible for the production of ova (eggs) and female sex hormones like estrogen and progesterone? — Ovary
13. Zygote Intrafallopian Transfer (ZIFT) is a procedure where: — Fertilized eggs (zygotes) are transferred into the fallopian tube
14. Gamete Intrafallopian Transfer (GIFT) involves: — Transferring unfertilized eggs and sperm directly into the fallopian tube
15. What is the primary purpose of Intrauterine Insemination (IUI)? — Directly injecting sperm into the uterus during the fertile window
16. The phase of the menstrual cycle immediately following ovulation is the: — Secretory phase (Luteal phase)
17. In the context of ART, what does 'embryo cryopreservation' refer to? — Freezing of embryos for future use
18. Which of the following is NOT a component of seminal fluid? — Spermatozoa
19. If a woman becomes pregnant, the corpus luteum is maintained by the hormone: — hCG (human Chorionic Gonadotropin)
20. The luteal phase of the menstrual cycle follows ovulation and is characterized by the formation and function of the corpus luteum, which primarily produces: — Progesterone and estrogen
21. The process by which a sperm fuses with an ovum is called: — Fertilization
22. In which ART procedure are eggs retrieved from the woman and fertilized with sperm in a laboratory, and the resulting embryo is then transferred to the uterus? — In vitro fertilization (IVF)
23. Which Assisted Reproductive Technology (ART) method involves fertilizing an egg with sperm outside the body in a laboratory dish? — In vitro fertilization (IVF)
24. Which ART method is most suitable for couples where both partners have infertility issues, possibly involving genetic screening of embryos? — IVF with PGD (Preimplantation Genetic Diagnosis)
25. Which ART method is often referred to as 'test-tube baby' technology? — IVF
26. Which ART technique involves injecting a single sperm directly into a mature egg, often used in cases of severe male infertility? — ICSI (Intracytoplasmic Sperm Injection)
27. Which hormone is secreted by the pituitary gland and stimulates the development of ovarian follicles? — FSH (Follicle-stimulating hormone)
28. During the menstrual cycle, which hormone is primarily responsible for the thickening of the uterine lining (endometrium)? — Estrogen
29. The cessation of menstruation, typically occurring around the age of 45-55, is known as: — Menopause
30. Which phase of the menstrual cycle is characterized by the development of follicles in the ovary and the rebuilding of the uterine lining? — Follicular phase
31. The process of sperm production is called: — Spermatogenesis
32. The proliferative phase of the menstrual cycle is characterized by the growth and repair of the: — Endometrium
33. What is the primary site of fertilization in humans? — Fallopian tube (ampulla)
34. If fertilization does not occur, the corpus luteum degenerates, leading to a drop in progesterone and estrogen levels, which initiates: — Menstruation
35. What is the primary role of the scrotum in the male reproductive system? — Regulate the temperature of the testes for optimal sperm production
36. What is the main function of the bulbourethral glands (Cowper's glands)? — Secrete a pre-ejaculate fluid that lubricates the urethra and neutralizes residual acidity
37. What is the main function of the Sertoli cells in the seminiferous tubules? — Support and nourish developing sperm cells
38. What is the role of the cervix in reproduction? — Connecting the uterus to the vagina and dilating during childbirth
39. What is the primary function of the fallopian tubes (oviducts) in human reproduction? — Site of fertilization
40. The LH surge, crucial for ovulation, is triggered by high levels of which hormone? — Estrogen
41. Which hormone, produced by the developing placenta, is detected in pregnancy tests? — hCG (human Chorionic Gonadotropin)
42. Which gland contributes a significant portion of the seminal fluid, containing fructose to nourish sperm? — Seminal vesicles
43. The vas deferens (ductus deferens) is a tube that transports sperm from the epididymis to the: — Ejaculatory duct
44. The interstitial cells (Leydig cells) located between the seminiferous tubules are responsible for: — Producing testosterone
45. The acrosome, a cap-like structure on the head of a sperm, contains enzymes essential for: — Penetrating the egg
46. The process of egg production is called: — Oogenesis
47. Which component of semen is alkaline and helps to neutralize the acidity of the female reproductive tract? —
48. Which hormone is responsible for the secondary sexual characteristics in females, such as breast development? — Estrogen
49. The term 'menarche' refers to: — The first occurrence of menstruation
50. Which part of the male reproductive system stores sperm and facilitates their maturation? — Epididymis
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