How many arteries are there in an umbilical cord?

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Reproductive System Exam Quizlet Questions

Question 1 of 5

How many arteries are there in an umbilical cord?

Correct Answer: C

Rationale: There are two arteries in an umbilical cord. The umbilical cord contains two arteries and one vein. Artery carries blood away from the fetus, while the vein returns blood to the fetus. Therefore, choices A, B, and D are incorrect as they do not represent the correct number of arteries in an umbilical cord.

Question 2 of 5

The programs aimed at achieving total reproductive health as a social goal at the national level are called:

Correct Answer: D

Rationale: The correct answer is D, 'Reproductive health.' Reproductive health programs focus on ensuring overall well-being in relation to reproduction, including access to reproductive services, education, and healthcare. Choice A, 'Family organization,' does not specifically address health aspects related to reproduction. Choice B, 'Family planning,' is more focused on birth control and family size rather than the broader aspects of reproductive health. Choice C, 'Reproductive care,' is limited to the aspect of medical care and does not encompass the comprehensive approach of reproductive health programs.

Question 3 of 5

Which contraceptive option suppresses sperm motility and inhibits the implantation of the blastocyst?

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.

Question 4 of 5

Which of the following is not a role of Reproductive and Child Health Care (RCH) programs?

Correct Answer: D

Rationale: The correct answer is D. Promoting abortion is not a role of the Reproductive and Child Health Care (RCH) programs. RCH programs focus on promoting awareness about reproductive health, providing facilities to build a reproductively healthy society, and offering support to reproductively sick individuals. The promotion of abortion is not within the scope of RCH programs, which aim to improve maternal and child health outcomes through education, healthcare services, and support systems.

Question 5 of 5

How many autosomes does a human primary spermatocyte have?

Correct Answer: B

Rationale: A human primary spermatocyte has 44 autosomes. Autosomes are chromosomes that are not involved in determining an individual's sex. In humans, there are a total of 46 chromosomes in a somatic cell, with 22 pairs of autosomes and one pair of sex chromosomes. Therefore, the correct answer is 44 autosomes, making choice B the correct answer. Choices A, C, and D are incorrect as they do not represent the accurate number of autosomes in a human primary spermatocyte.

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