NCLEX : NCLEX
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Example Questions
Example Question #371 : Nclex
Which of the following structures are formed from the embryological Wolffian ducts?
The epididymis
The vas deferens
All of these are correct
The seminal vesicles
All of these are correct
The Wolffian ducts are fetal urogenital structures that develop into the seminal vesicles, the vas deferens, and the epididymis. They also form parts of the bladder wall.
Example Question #372 : Nclex
Which of the following is not an androgen?
Dehydroepiandrosterone (DHEA)
2-Hydroxyestrone
Dihydrotestosterone
Androstenedione
2-Hydroxyestrone
All of the hormones listed, and testosterone, are androgens except 2-hydroxyestrone, which is a metabolite of estrone (a form of estrogen).
Example Question #373 : Nclex
Androstenedione is produced by all of the following tissues except __________.
The adrenal cortex
The adrenal medulla
The ovaries
The testes
The adrenal medulla
Androstenedione is produced by the ovaries, the testes, and the adrenal cortex. The adrenal medulla primarily secretes epinephrine and norepinephrine.
Example Question #371 : Nclex
Which of the following is a normal dehydroepiandrosterone (DHEA) level in an adult female under the age of fifty?
Normal DHEA levels in an adult female under the age of fifty range from 
Example Question #372 : Nclex
Which of the following is a normal dehydroepiandrosterone (DHEA) level in an adult male under the age of fifty?
The normal DHEA levels in an adult male under the age of fifty can range from 
Example Question #373 : Nclex
Which of the following is not a function of progesterone during pregnancy?
Increases the contractility of the uterus
Decreases maternal immune response to the fetus
Inhibits lactation during pregnancy
Breast maturation in preparation for lactation
Breast maturation in preparation for lactation
Progesterone serves many functions in pregnancy. It prepares the endometrial lining for implantation of the embryo, it increases the contractility of the uterus, it inhibits lactation during pregnancy, and it is thought to reduce maternal immune response to the developing fetus. Breast enlargement and maturation in preparation for lactation is facilitated by estrogen, rather than progesterone.
Example Question #374 : Nclex
Which of the following proteins initiates male sexual development in utero?
Testosterone-sensitizing protein
Testis-determining factor
Masculinization factor
Male-determining protein
Testis-determining factor
Testis-determining factor, also known as sex-determining region Y (SRY) protein, is a sex-determining gene found exclusively on the Y-chromosome in humans. It's transcription triggers the development of male sexual characteristics in the developing fetus.
Example Question #375 : Nclex
The Sertoli cells of the testes secrete all of the following except __________.
All of these are secreted by the Sertoli cells
Estradiol
Androgen binding protein
Anti-Müllerian hormone
All of these are secreted by the Sertoli cells
The Sertoli cells of the testes are responsible for the secretion of many substances, including anti-Müllerian hormone, androgen binding protein, glial cell line-derived neurotrophic factor, and estradiol.
Example Question #376 : Nclex
Which of the following is the term used to describe the post-ejaculatory transformation of sperm via enzymes in the uterus and seminal fluid?
Capacitation
Penultimation
Spermatazoal maturation
Decapitation
Capacitation
The process by which post-ejaculatory sperm is rendered fully mature and capable of fertilization of an ovum is called capacitation. This is where enzymes within the uterus are able to partially degrade the acrosome, the cap surrounding the head of the spermatazoa, allowing it to bind with and eventually penetrate the zona pellucida of the egg.
Example Question #75 : General Biology
Which of the following minerals stabilizes sperm cell chromatin?
Magnesium
Manganese
Zinc
Copper
Zinc
The stability of sperm cell chromatin is dependent on zinc. Zinc deficiency can cause sperm to be fragile, which in turn lowers sperm count and decreases male fertility.
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