Nokea
Once sperm are produced by the testes they move into and mature in the
- A. seminiferous tubes
- B. penis
- C. vas deferens
- D. epididymis
Correct Answer: D
Rationale: The correct answer is D: epididymis. After being produced in the testes, sperm move into the epididymis for maturation. The epididymis provides the optimal environment for sperm storage and maturation, allowing them to gain motility and fertilization capability. The seminiferous tubes (A) are where sperm are produced, not matured. The penis (B) is the external organ for ejaculation, not maturation. The vas deferens (C) is the tube that carries mature sperm from the epididymis to the urethra, not the site of sperm maturation.
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What is the cause of menopause?
- A. Reduced levels of gonadotropic hormones secreted from the anterior pituitary gland
- B. Reduced responsiveness of the follicles to the stimulatory effects of gonadotropic hormones
- C. Reduced rate of secretion of progesterone from the corpus luteum
- D. Reduced numbers of follicles available in the ovary for stimulation by gonadotropic hormones
Correct Answer: D
Rationale: The correct answer is D because menopause occurs when the ovaries run out of follicles, which are needed for ovulation and hormone production. This leads to reduced estrogen levels and cessation of menstrual cycles. Choices A and B focus on hormone levels and follicle responsiveness, not the actual follicle count. Choice C is incorrect as progesterone is mainly produced by the corpus luteum after ovulation, not the primary cause of menopause.
A nurse goes to a high school to teach students about reducing the risk of sexually transmitted infections. Which of the following is the best answer for providing information on the prevention of STIs?
- A. Have monogamous sex with an infected partner.
- B. Abstain from sexual activities.
- C. Wash any areas where there has been indirect contact with semen or vaginal mucus.
- D. Avoid protected sex until you and sexual partners have completed treatment.
Correct Answer: B
Rationale: Abstinence is the most effective way to prevent STIs.
Where does fertilization normally take place?
- A. Uterus
- B. Cervix
- C. Ovary
- D. Ampulla of the fallopian tubes
Correct Answer: D
Rationale: The correct answer is D: Ampulla of the fallopian tubes. Fertilization typically occurs in the ampulla of the fallopian tubes, where the sperm meets the egg. The ampulla is the widest part of the fallopian tube, providing the necessary space for fertilization to occur. Sperm must travel through the cervix and uterus to reach the fallopian tubes where fertilization takes place. The ovary is where the egg is released during ovulation but fertilization occurs in the fallopian tubes.
When assessing a client with cervical cancer who had a total abdominal hysterectomy yesterday, you obtain the following data. Which information has the most immediate implications for planning the client's care?
- A. Fine crackles are audible at the lung bases.
- B. Client's right calf is swollen and tender.
- C. Client is using the PCA every 15 minutes.
- D. Urine in the collection bag is amber and clear.
Correct Answer: B
Rationale: Swelling and tenderness in the calf suggest deep vein thrombosis, a serious complication requiring immediate attention.
Which of these is not produced by the placenta?
- A. estrogen
- B. relaxin
- C. progesterone
- D. lactogen
Correct Answer: B
Rationale: The correct answer is B: relaxin. The placenta produces estrogen, progesterone, and lactogen to support pregnancy. Relaxin is primarily produced by the corpus luteum and later by the placenta. However, it is not exclusively produced by the placenta, making it the correct choice. Estrogen is crucial for fetal development and maintaining pregnancy. Progesterone helps in preparing the uterus for implantation and supporting the pregnancy. Lactogen (human placental lactogen) plays a role in regulating maternal metabolism and fetal growth.