Nokea
In what specific part of the male reproductive system do maturing sperm gain increased motility and their ability to swim?
- A. Seminiferous tubules
- B. Epididymis
- C. Ductus deferens
- D. Ejaculatory duct
Correct Answer: B
Rationale: The correct answer is B: Epididymis. The epididymis is where maturing sperm gain increased motility and their ability to swim due to the presence of specific proteins and enzymes that facilitate this process. Sperm leave the seminiferous tubules in an immature state and undergo maturation in the epididymis through interactions with these proteins. The ductus deferens and ejaculatory duct are not involved in the maturation process of sperm and do not contribute to their motility. The seminiferous tubules are responsible for sperm production but not for the maturation of sperm motility.
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A 67-year-old male client had some serum tests performed during his annual examination. The nurse reviews his results, as follows: testosterone: 680 ng/dL; prostate-specific antigen: 10 ng/mL; prolactin: 5 ng/mL. What action by the nurse is best?
- A. Assess for possible galactorrhea with breast discharge.
- B. Note the possibility of a testicular tumor.
- C. Communicate to the provider that results were normal
- D. Prepare the client for further diagnostic testing
Correct Answer: D
Rationale: The correct answer is D: Prepare the client for further diagnostic testing. A testosterone level of 680 ng/dL is high for a 67-year-old male, which could indicate an underlying medical condition. A prostate-specific antigen level of 10 ng/mL is elevated and could suggest prostate issues. Prolactin level of 5 ng/mL is within normal range but still needs further evaluation due to the other abnormal results. Therefore, preparing the client for further diagnostic testing is crucial to investigate the potential underlying health concerns.
Incorrect options:
A: Assess for possible galactorrhea with breast discharge - Irrelevant as galactorrhea is not indicated by the given results.
B: Note the possibility of a testicular tumor - Testosterone level elevation is more indicative of non-testicular issues.
C: Communicate to the provider that results were normal - Results are not normal, warranting further evaluation.
Which statement regarding the uterus is true:
- A. it is pear-shaped;
- B. the superior extremity is represented by the corpus;
- C. the vagina is inserted on the inferior extremity;
- D. it is located laterally in the pelvis;
Correct Answer: A
Rationale: The correct answer is A: it is pear-shaped. The uterus is indeed pear-shaped in structure, with a wider upper part called the corpus and a narrower lower part called the cervix. The pear shape allows for the expansion required during pregnancy. The other choices are incorrect: B is inaccurate as the superior extremity is the fundus, not the corpus; C is incorrect as the vagina is connected to the cervix, not the inferior extremity; D is wrong as the uterus is located centrally in the pelvis.
Elbow, knee are _____ type of joints
- A. Ball-an
- B. socket
- C. Hinge
- D. Pivot
Correct Answer: C
Rationale: The correct answer is C: Hinge. Elbow and knee joints are classified as hinge joints because they primarily allow movement in one plane, similar to a door hinge. These joints enable flexion and extension movements, which are characteristic of hinge joints. The other choices (A: Ball-and-socket, B: Socket, D: Pivot) do not accurately describe the structure and function of the elbow and knee joints. Ball-and-socket joints allow for a wider range of motion in multiple directions, sockets are components of ball-and-socket joints, and pivot joints allow rotational movement around a central axis, none of which align with the movement pattern of the elbow and knee joints. Therefore, the correct classification for elbow and knee joints is hinge joints due to their specific range of motion.
Acrosome is filled with _________.
- A. Lipids
- B. Hormones
- C. Digestive enzymes
- D. None of the above
Correct Answer: C
Rationale: The correct answer is C: Digestive enzymes. The acrosome is a specialized organelle found in the head of sperm cells and is filled with enzymes that are crucial for fertilization. These enzymes help the sperm penetrate the outer layers of the egg during fertilization. Choice A (Lipids) is incorrect because the acrosome primarily contains enzymes, not lipids. Choice B (Hormones) is incorrect as hormones are not stored in the acrosome. Choice D (None of the above) is incorrect as the acrosome does indeed contain digestive enzymes essential for the sperm's fertilization process.
Mrs. Smith says to her nurse, 'I don't know why I just can't have the lump removed and go home.' The best response from the nurse would be which of the following?
- A. That sounds good to me.'
- B. Do you remember the doctor told you further treatment is indicated after the lump is removed?'
- C. I think mastectomy is the safest option.'
- D. Don't you think that's quite a gamble?'
Correct Answer: B
Rationale: Reminding the patient of the doctor's advice regarding further treatment is informative and supportive.