HESI RN
Reproductive System Exam Quizlet
1. Which animal is an ovoviviparous animal?
- A. Basking shark
- B. Bonobo
- C. Blue shark
- D. None of the above
Correct answer: C
Rationale: The correct answer is the Blue shark. Ovoviviparous animals produce eggs that develop inside the body of the parent, and the offspring are born alive. The basking shark does not fall under this category as it is ovoviviparous, meaning it lays eggs that hatch inside the female's body. The bonobo is a separate species and not relevant to the question.
2. Practices such as female genital mutilation and unsafe male circumcision are categorized as:
- A. Harmful traditional practices
- B. Encouraged in rural Zambia
- C. Recommended in modern surgery and IRH
- D. Safer sex practices
Correct answer: A
Rationale: Practices like female genital mutilation and unsafe male circumcision are considered harmful traditional practices due to the physical and psychological harm they cause. Choice A is correct as these practices are not safe or recommended. Choice B is incorrect, as harmful traditional practices are not encouraged anywhere. Choice C is incorrect as modern surgery and organizations like IRH aim to eliminate such practices, not recommend them. Choice D is incorrect as these practices are not related to safer sex practices but rather harmful practices that need to be eradicated.
3. Amniocentesis, a prenatal diagnostic test used to determine fetal sex, genetic anomalies, and biochemical abnormalities, is based on:
- A. The karyotyping of the amniotic fluid
- B. Chorionic villus sampling
- C. Umbilical cord blood sampling
- D. Ultrasound
Correct answer: A
Rationale: The correct answer is A. Amniocentesis involves the analysis of the fetal cells present in the amniotic fluid, which is extracted from the amniotic sac surrounding the developing fetus. This fluid contains cells shed by the fetus, which can be cultured and analyzed to obtain a karyotype, providing information about the fetal sex, genetic anomalies, and biochemical abnormalities. Choices B, C, and D are incorrect because chorionic villus sampling involves obtaining a sample of the chorionic villi from the placenta, not the amniotic fluid; umbilical cord blood sampling is typically used for other purposes like assessing the baby's blood for infections or genetic disorders; and ultrasound is a diagnostic imaging technique that does not involve the analysis of fetal cells for genetic information.
4. 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.
5. Which one of the following statements is NOT true about menstruation?
- A. The average amount of menstrual flow is 50 to 90 ml.
- B. The menstrual flow constitutes serous fluid, necrotic slough.
- C. The cycle is influenced by the ovarian hormones Estrogen and progesterone.
- D. The menstrual flow has non-clotting blood.
Correct answer: D
Rationale: The correct answer is D. The statement that menstrual flow has non-clotting blood is incorrect because menstrual blood can indeed clot. Choices A, B, and C are all true statements about menstruation. Choice A reflects the average amount of menstrual flow, choice B describes the components of menstrual flow, and choice C correctly identifies the ovarian hormones that influence the menstrual cycle.
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