HESI RN
Reproductive System Exam Quizlet
1. Inevitable abortion occurs when:
- A. The ovum dies in utero and the decidua capsularis remains intact.
- B. The cervix is open, and the products of conception are about to be expelled.
- C. The products of conception are expelled before the 20th week of gestation.
- D. The fetus dies and is expelled in the first trimester.
Correct answer: B
Rationale: Inevitable abortion occurs when the cervix is open, and the products of conception are about to be expelled. This is a critical point in the process of spontaneous abortion, indicating that expulsion of the products of conception is imminent. Choice A is incorrect as it describes a missed abortion where the ovum dies but the decidua capsularis remains intact. Choice C is incorrect as it describes an incomplete abortion where the products of conception are expelled before the completion of 20 weeks of gestation. Choice D is incorrect as it describes a missed abortion where the fetus dies and is expelled in the first trimester.
2. What is one goal of family planning?
- A. Ensuring that all couples and individuals have the basic right to decide freely and responsibly the number and spacing of their children
- B. Limiting couples and individuals to one or two children
- C. Forcing couples and individuals to have only one child and adopt siblings from an orphanage
- D. Providing a permanent method of family planning after having three children
Correct answer: A
Rationale: The correct answer is A. Family planning aims to ensure that all couples and individuals have the basic right to decide freely and responsibly the number and spacing of their children. This promotes reproductive autonomy and allows individuals to make informed choices about their family size. Choices B, C, and D are incorrect because they involve imposing restrictions or decisions on family size rather than empowering individuals to make their own choices.
3. Which contraceptive option suppresses sperm motility and inhibits the implantation of the blastocyst?
- A. Copper-T
- B. Diaphragm
- C. Contraceptive pills
- D. Condom
Correct answer: A
Rationale: The correct answer is A, Copper-T. Copper-T is an intrauterine device that releases copper ions, which suppress sperm motility and inhibit the implantation of the blastocyst. This method mainly works by preventing fertilization and, if fertilization occurs, by making the endometrium less receptive to implantation. Choices B, C, and D are incorrect. The diaphragm is a barrier method that prevents sperm from reaching the cervix; contraceptive pills mainly work by suppressing ovulation and altering cervical mucus to prevent sperm from reaching the egg; condoms are barrier methods that prevent sperm from entering the vagina.
4. _______ is a lytic enzyme released by the sperm.
- A. Hyaluronidase
- B. Trypsin
- C. Helicase
- D. None of the above
Correct answer: A
Rationale: Hyaluronidase is the correct answer. It is a lytic enzyme released by the sperm to help penetrate the egg's protective layer. Trypsin is a digestive enzyme produced in the pancreas, not released by sperm. Helicase is an enzyme involved in DNA replication, not released by sperm. 'None of the above' is incorrect as hyaluronidase fits the description provided in the question.
5. The _________ is a temporary organ that connects a mammalian mother to its foetus.
- A. Placenta
- B. Chorion
- C. Endometrium
- D. None of the above
Correct answer: A
Rationale: The correct answer is A: Placenta. The placenta is a temporary organ that connects a mammalian mother to its foetus. It plays a crucial role in facilitating the exchange of nutrients, oxygen, and waste between the mother and the developing baby. Choice B, Chorion, is incorrect as it is a part of the fetal membrane but not the organ that connects the mother to the fetus. Choice C, Endometrium, is incorrect as it is the lining of the uterus where implantation occurs but is not the organ responsible for connecting the mother to the fetus. Choice D, None of the above, is incorrect as the placenta specifically fits the description provided in the question.
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