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_________ 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.
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While giving a history, a patient reports having a weak urinary stream and feeling that his bladder is not empty after urination. Based on these data, what finding does the nurse anticipate upon examination?
- A. An enlarged prostate gland palpated on the anterior wall of the rectum
- B. An indirect hernia palpated through the inguinal ring when the patient coughs
- C. The foreskin of the penis cannot be returned to position after retraction behind the glans
- D. A nodular prostate gland palpated on the posterior wall of the rectum
Correct Answer: A
Rationale: The correct answer is A: An enlarged prostate gland palpated on the anterior wall of the rectum. In this case, the patient's weak urinary stream and feeling of incomplete bladder emptying are classic symptoms of benign prostatic hyperplasia (BPH). During a rectal examination, an enlarged prostate gland can be felt as a smooth, rubbery, and symmetrically enlarged mass on the anterior wall of the rectum. This finding correlates with the patient's urinary symptoms, indicating obstruction of the urethra by the enlarged prostate.
Choice B is incorrect because an indirect hernia is not typically associated with urinary symptoms. Choice C is incorrect as it describes paraphimosis, a condition where the foreskin cannot be returned to its original position. Choice D is incorrect as a nodular prostate gland palpated on the posterior wall of the rectum is more characteristic of prostate cancer rather than BPH, which is typically felt on the anterior wall.
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.
Which of the following is not a source of estrogen?
- A. adrenal gland
- B. ovary
- C. pituitary
- D. follicle
Correct Answer: C
Rationale: The correct answer is C: pituitary. Estrogen is primarily produced by the ovaries, with a small amount also coming from the adrenal glands. The pituitary gland is not a direct source of estrogen production but plays a role in regulating the release of hormones that stimulate estrogen production in the ovaries. The follicle, on the other hand, is a structure within the ovary where estrogen is produced during the menstrual cycle. Therefore, C is the correct answer as the pituitary gland does not directly produce estrogen.
About the external male genital organ, we can state the following:
- A. it is part of the urinary ducts, being a urination organ;
- B. it is represented by the urethra;
- C. it is a pair organ;
- D. it is located above the scrotum, anterior to the pubian symphisis;
Correct Answer: B
Rationale: Step-by-step rationale for why answer B is correct:
1. The external male genital organ is represented by the urethra, which is the duct that carries urine from the bladder out of the body.
2. The urethra is responsible for both urination and ejaculation.
3. The other choices are incorrect because the external male genital organ is not part of the urinary ducts, not a pair organ, and not located above the scrotum.
The term __________ describes an inflammation of the cervix that is usually caused by an infection.
- A. cervicitis
- B. vaginitis
- C. cercicopathy
- D. vaginoplasty
Correct Answer: A
Rationale: The correct answer is A: cervicitis. Cervicitis specifically refers to inflammation of the cervix, often due to an infection. Vaginitis (B) is inflammation of the vagina, not the cervix. Cercicopathy (C) is not a medical term. Vaginoplasty (D) is a surgical procedure to reconstruct or tighten the vagina, unrelated to inflammation or infection of the cervix.