Nokea
The child's sex is determined by:
- A. the type of the spermatozoon that fecundates the ovule;
- B. the type of the fecundated ovule;
- C. the sex chromosome of the ovule;
- D. the sex chromosome of the spermatozoon
Correct Answer: D
Rationale: The correct answer is D because the sex of the child is determined by the sex chromosome carried by the spermatozoon that fertilizes the ovule. Sperm carries either an X or a Y chromosome, determining if the child will be male (XY) or female (XX). Choices A and B are incorrect because the type of spermatozoon or ovule does not solely determine the child's sex. Choice C is incorrect as well because the sex chromosome of the ovule alone does not determine the child's sex.
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A 29 year old married computer programmer is c/o 'something strange' going on in his scrotum. Last month he felt a lump in his left testis, and it is still there. He has had some aching in the left testis but denies pain with urination or intercourse. Denies fever, malaise, night sweats. His PMH consisted of groin surgery as a baby and a tonsillectomy as an adolescent. He eats a healthy diet, exercises, denies tobacco or drugs. On exam the penis is circumcised with no lesions. No lymphadenopathy. Palpation of his scrotum is unremarkable on the right but indicates a large mass on the left. Placing a finger through the inguinal ring on the right, you have the patient bear down. Nothing is felt. You attempt to place your finger through the left inguinal ring but cannot get above the mass. On rectal exam, his prostate is unremarkable. What disorder of the tests is most likely the diagnosis?
- A. Hydrocele
- B. Scrotal hernia
- C. Scrotal edema
- D. Varicocele
Correct Answer: B
Rationale: The correct answer is B: Scrotal hernia. The patient's presentation with a lump in the left testis, aching, and a large mass on the left side of the scrotum, along with the inability to pass a finger above the mass through the left inguinal ring, suggests a scrotal hernia. This is further supported by the fact that bearing down does not reveal anything on the right side, ruling out hydrocele and varicocele. Scrotal edema would present with more generalized swelling in the scrotum rather than a localized mass. So, the key findings here point towards a scrotal hernia as the most likely diagnosis.
What results from spermiogenesis? ________.
- A. four spermatogonia
- B. emission
- C. four spermatids
- D. menses
Correct Answer: C
Rationale: Spermiogenesis is the process of spermatid maturation into spermatozoa. During this process, each spermatid transforms into a single sperm cell. Therefore, the correct answer is C: four spermatids, as spermiogenesis results in the formation of four mature sperm cells from each spermatid.
A: Four spermatogonia are the cells that undergo mitosis to produce spermatocytes, not the result of spermiogenesis.
B: Emission refers to the release of semen during ejaculation, not the result of spermiogenesis.
D: Menses is the shedding of the uterine lining during the menstrual cycle in females, not related to spermiogenesis.
The target of ICSH is the _____.
- A. prostate
- B. seminiferous tubule
- C. interstitial cells
- D. seminal vesicle
Correct Answer: C
Rationale: Step 1: ICSH stands for interstitial cell-stimulating hormone.
Step 2: Interstitial cells are found in the testes and produce testosterone.
Step 3: ICSH targets these interstitial cells to stimulate testosterone production.
Step 4: Therefore, the correct answer is C: interstitial cells.
Summary: A, B, and D are incorrect as ICSH does not target the prostate, seminiferous tubule, or seminal vesicle.
_________ is an example of a viviparous animal.
- A. Goat
- B. Duck
- C. Crocodile
- D. None of the above
Correct Answer: A
Rationale: The correct answer is A: Goat. Viviparous animals give birth to live young instead of laying eggs. Goats fall under this category as they give birth to live kids. Ducks (B) are oviparous, laying eggs. Crocodiles (C) are also oviparous, laying eggs. Choice D is incorrect as goats are viviparous animals.
Which of the following nursing interventions are required for a client undergoing antibiotic treatment for epididymitis and orchitis?
- A. Use an alcohol rub to keep the scrotum dry.
- B. Apply a skin cream.
- C. Elevate the scrotum to relieve the pain.
- D. Limit alcohol intake to 2 drinks per week.
Correct Answer: C
Rationale: Elevating the scrotum helps alleviate pain and swelling.