Nokea
Parenchymal tissue of the testes is
- A. Interstitial cells of Leydig
- B. Seminiferous tubules
- C. Spermatozoon
- D. Semen
Correct Answer: B
Rationale: The correct answer is B: Seminiferous tubules. These are the structures within the testes where sperm production occurs. This is the main function of testicular parenchymal tissue. Interstitial cells of Leydig (A) produce testosterone, spermatozoon (C) is a mature sperm cell, and semen (D) is a fluid that contains sperm and other substances. These choices are incorrect as they do not specifically represent the parenchymal tissue of the testes where sperm production takes place.
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Which gland produces thick, clear mucus that cleanses the penile urethra of acidic urine?
- A. Testes
- B. Seminal vesicles
- C. Prostate
- D. Bulbourethral glands
Correct Answer: D
Rationale: The correct answer is D: Bulbourethral glands. These glands produce thick, clear mucus that cleanses the penile urethra of acidic urine before ejaculation. This mucus helps neutralize the acidity of urine, creating a more hospitable environment for sperm to travel through. The other choices are incorrect because:
A: Testes produce sperm, not mucus.
B: Seminal vesicles produce a fluid rich in fructose to nourish sperm.
C: Prostate produces a milky fluid that aids in sperm motility.
Testosterone is converted to _____ in the prostate.
- A. cholesterol
- B. estrogen
- C. progesterone
- D. dihydrotestosterone
Correct Answer: D
Rationale: The correct answer is D: dihydrotestosterone. Testosterone is converted to dihydrotestosterone (DHT) in the prostate by the enzyme 5-alpha reductase. DHT is a more potent androgen that plays a crucial role in prostate growth and development. Choice A (cholesterol) is incorrect as it is not a product of testosterone conversion in the prostate. Choice B (estrogen) is incorrect as testosterone is not directly converted to estrogen in the prostate. Choice C (progesterone) is incorrect as progesterone is not the main product of testosterone conversion in the prostate.
Infants of mothers who had adequate nutrition during pregnancy do not require iron supplements or a diet rich in iron until about 3 months of age. Why is this?
- A. Growth of the infant does not require iron until after the 3rd month
- B. The fetal liver stores enough iron to meet the infant’s needs until the third month
- C. Synthesis of new red blood cells begins after 3 months
- D. Muscle cells that develop before the 3rd month do not contain myoglobin
Correct Answer: B
Rationale: The correct answer is B: The fetal liver stores enough iron to meet the infant’s needs until the third month. During pregnancy, the fetus accumulates iron stores in the liver from the mother, which can sustain the infant's iron needs for the first few months of life. This stored iron is gradually utilized by the infant as the maternal iron supply diminishes post-birth.
Explanation of why the other choices are incorrect:
A: Growth of the infant does require iron even in the early months for various metabolic processes and functions.
C: Synthesis of new red blood cells starts shortly after birth, not necessarily after 3 months.
D: Myoglobin is not directly related to iron supplementation needs in infants and is unrelated to the timing of iron supplementation requirements.
A client is asking the nurse questions about the diagnosis of endometriosis. The nurse teaches the client that endometrial tissue is found outside the uterus and that the major symptom that a client experiences is which of the following?
- A. Pain
- B. Infection
- C. Minimal bleeding
- D. Cramping
Correct Answer: A
Rationale: Pain is the primary symptom associated with endometriosis.
The medical term expressing suture of the neck of the uterus is __________
- A. cervicography
- B. perineorrhaphy
- C. cervicorrhapy
- D. cervicorrhexis
Correct Answer: C
Rationale: The correct answer is C: cervicorrhaphy. "Cervico-" refers to the neck of the uterus, and "-rrhaphy" means suture. Therefore, cervicorrhaphy is the correct term for the procedure of suturing the neck of the uterus.
A: Cervicography is a diagnostic imaging technique, not a procedure for suturing.
B: Perineorrhaphy involves suturing the perineum, not the neck of the uterus.
D: Cervicorrhexis refers to cutting or incising the neck of the uterus, not suturing it.