Approximately how many sperm are normal ejaculated during intercourse.
- A. 4,000
- B. 40,000
- C. 400,000,000
- D. 4,000,000
Correct Answer: C
Rationale: The correct answer is C: 400,000,000. During ejaculation, a healthy male typically releases around 200-500 million sperm cells. Choice A (4,000) and B (40,000) are too low compared to the average sperm count. Choice D (4,000,000) is also significantly lower than the typical sperm count, making it incorrect. Therefore, C is the correct answer as it aligns with the standard range of sperm count during ejaculation.
You may also like to solve these questions
Women infected with human papilloma virus (HPV) are at risk for which of the following?
- A. Uterine fibroids
- B. Cervical cancer
- C. Ovarian cysts
- D. Hemorrhagic
Correct Answer: B
Rationale: HPV infection is a significant risk factor for developing cervical cancer.
Which one of the following is NOT a (vas) deferens, epididymis, component of semen?
- A. sperm
- B. epididymis, seminal glands
- C. seminal fluid
- D. prostatic fluid
Correct Answer: A
Rationale: The correct answer is A: sperm. Sperm is not a component of semen; it is the male reproductive cell. Semen is composed of fluids from the epididymis, seminal glands, and prostate, which provide nourishment, protection, and transportation for sperm. The epididymis stores and matures sperm, seminal glands produce seminal fluid, and the prostate contributes prostatic fluid. Sperm is only a part of semen and not a component of it. Therefore, choice A is the correct answer.
The tiny ball of 16 cells found freely
- A. testosterone floating in the uterine cavity is called a
- B. interstitial cell-stimulating ________.
- C. blastocyst
- D. luteinizing hormone
Correct Answer: C
Rationale: The correct answer is C: blastocyst. At this stage of development, the embryo is a hollow ball of cells with an inner cell mass. This structure is called a blastocyst. A is incorrect because testosterone is a hormone, not a cell structure. B is incorrect as it does not describe the early stage of embryonic development. D is incorrect as luteinizing hormone is a hormone involved in the menstrual cycle, not embryonic development.
A client who is scheduled for an endometrial biopsy expresses concerns about the procedure as she is apprehensive of 'being operated' on. How can the nurse relieve her anxiety?
- A. The nurse should inform her that this test will not require her to be under anesthetic influence for a long period.
- B. The nurse should inform her that this test will be performed under general anesthesia and she will be pain free.
- C. The nurse should inform her that this test will be performed under the care of expert physicians and nurses.
- D. The nurse should inform her that this procedure may be performed without anesthesia in the physician's office.
Correct Answer: D
Rationale: Endometrial biopsies are typically minimally invasive and often do not require anesthesia.
Testosterone produces negative feedback to:
- A. the anterior pituitary to turn off follicle stimulating hormone secretion
- B. the anterior pituitary to turn off both luteinizing hormone and follicle stimulating hormone secretion
- C. Sertoli cells turn off inhibin secretion
- D. the anterior pituitary to turn off luteinizing hormone secretion
Correct Answer: D
Rationale: Step-by-step rationale:
1. Testosterone inhibits the release of luteinizing hormone (LH) through negative feedback.
2. LH is produced by the anterior pituitary.
3. Therefore, testosterone exerts negative feedback on the anterior pituitary to turn off LH secretion.
4. This maintains hormonal balance in the body.
Summary of other choices:
A. Incorrect because testosterone primarily affects LH secretion, not follicle stimulating hormone (FSH).
B. Incorrect as it inaccurately suggests that testosterone turns off both LH and FSH secretion.
C. Incorrect because Sertoli cells are involved in spermatogenesis, not LH regulation.