Nokea
The spongy tissue of the penis fills
- A. circumcision with blood during sexual excitement
- B. spermatogenesis and causes the penis to enlarge and
- C. ejaculation become rigid during ________.
- D. erection
Correct Answer: D
Rationale: The spongy tissue of the penis fills with blood during an erection to cause the penis to become rigid. This process is essential for maintaining an erection during sexual activity. Spermatogenesis refers to the production of sperm, not the filling of spongy tissue. Circumcision does not involve the filling of spongy tissue with blood. Ejaculation is the release of semen and does not involve the filling of spongy tissue. Therefore, the correct answer is D as it accurately describes the physiological process of penile erection.
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Bat shaped bone that form part of the base of the skull is called as
- A. Ethmoid bone
- B. Sphenoid bone
- C. Parietal bone
- D. Occipital bone
Correct Answer: B
Rationale: The correct answer is B: Sphenoid bone. The sphenoid bone is bat-shaped and forms part of the base of the skull. It is located in the middle of the skull, helping to connect the cranial bones. The other choices, A: Ethmoid bone, C: Parietal bone, and D: Occipital bone, do not match the description of a bat-shaped bone at the base of the skull. The ethmoid bone is located between the eyes, the parietal bone forms the top and sides of the skull, and the occipital bone forms the back and base of the skull. Therefore, B is the correct answer based on the specific description given in the question.
The primary spermatocytes:
- A. are formed by spermatogonia mitosis;
- B. have a complete number of chromosomes;
- C. generate secondary spermatocytes;
- D. are diploid cells;
Correct Answer: D
Rationale: The correct answer is D because primary spermatocytes are diploid cells, containing a complete set of chromosomes (46 in humans). They are formed by spermatogonia through a process called meiosis. During meiosis, the primary spermatocytes undergo two divisions to generate haploid secondary spermatocytes with half the number of chromosomes. Choices A and C are incorrect because primary spermatocytes are formed by spermatogonia undergoing meiosis, not mitosis, and they generate secondary spermatocytes, not the other way around. Choice B is incorrect because primary spermatocytes are diploid, not haploid.
During fetal development which cells give rise to primary oocytes?
- A. Spermatogonia
- B. Secondary oocytes
- C. Oogonia
- D. Granulosa cells
Correct Answer: C
Rationale: The correct answer is C: Oogonia. Oogonia are the cells that give rise to primary oocytes during fetal development. Oogonia undergo mitosis to produce primary oocytes, which then enter meiosis I to form secondary oocytes. Spermatogonia (A) are male germ cells that develop into sperm, not oocytes. Secondary oocytes (B) are formed from primary oocytes in the ovary after meiosis I completion. Granulosa cells (D) are somatic cells in the ovary that support oocyte development but do not give rise to oocytes themselves.
Which of the following nursing interventions are advised for clients with prostate cancer to avoid an infection related to the home-care of a Foley catheter?
- A. Boil the leg bag regularly in a solution of hot water and vinegar for 15 minutes during the cleaning.
- B. Disinfect several inches of the catheter with alcohol or any other antiseptic agent before the insertion.
- C. Clean the leg bag by using soap and water and then rinse it with a 1:7 solution of vinegar and water.
- D. Open the connections between the leg bag and the catheter only once in 15 days to reduce the risks of microbial entry.
Correct Answer: C
Rationale: Proper cleaning and maintenance of the catheter equipment are crucial to preventing infections.
A “birth control” compound for men has been sought for several decades. Which of the following would provide effective sterility?
- A. Substance that mimics the actions of luteinizing hormone
- B. Substance that blocks the actions of inhibin
- C. Substance that blocks the actions of follicle-stimulating hormone
- D. Substance that mimics the actions of gonadotropin-releasing hormone
Correct Answer: C
Rationale: The correct answer is C: Substance that blocks the actions of follicle-stimulating hormone. By blocking the actions of FSH, sperm production in the testes would be inhibited, leading to effective sterility. FSH plays a crucial role in stimulating sperm production, so blocking its actions would prevent the development of mature sperm.
Explanation for why the other choices are incorrect:
A: Substance that mimics the actions of luteinizing hormone - Mimicking LH would not necessarily lead to effective sterility in men.
B: Substance that blocks the actions of inhibin - Inhibin regulates FSH secretion but blocking it would not directly lead to effective sterility.
D: Substance that mimics the actions of gonadotropin-releasing hormone - Mimicking GnRH would not directly impact sperm production and sterility.