All NCLEX Resources
Example Questions
Example Question #1 : Reproductive Physiology
What is the most common cause of anovulatory infertility?
Hypogonadism
Polycystic ovarian syndrome (PCOS)
Stress
Poor nutrition
Polycystic ovarian syndrome (PCOS)
In polycystic ovarian syndrome (PCOS), luteinizing hormone (LH) levels are elevated, while follicle-stimulating hormone (FSH) levels are often low. Because FSH aromatizes androgens to estrogen, low FSH will cause androgens to increase. Low levels of FSH and high androgens keep the follicle from maturing & prevent ovulation. Hypogonadism is significantly more rare, and while extreme stress and poor nutrition may inhibit ovulation, in the United States PCOS is the leading cause of anovulation (failure to release an ovule from the ovary).
Example Question #50 : General Biology
Which of the following hormones is a precursor for both estrogen and testosterone?
Dehydroepiandrosterone (DHEA)
Aldosterone
Estrone
Dihydrotestosterone
Dehydroepiandrosterone (DHEA)
Dehydroepiandrosterone (DHEA), an endogenous steroid hormone that is a precursor for both estrogen and testosterone, is synthesized from pregnenolone in the gonads, the adrenal glands, and the brain.
Example Question #1 : Reproductive Physiology
What is the most abundant circulating steroid hormone in humans?
Aldosterone
Pregnenolone
Dehydroepiandrosterone (DHEA)
Cortisol
Dehydroepiandrosterone (DHEA)
The most abundant circulating steroid hormone in the human body is Dehydroepiandrosterone (DHEA). DHEA is a precursor to several important sex hormones including testosterone and estrogen. It also functions as a neuroactive steroid.
Example Question #51 : General Biology
Which of the following hormones is secreted by the corpus luteum in order to prepare the endometrium for implantation of a fertilized ovum?
Progesterone
Pregnenolone
Lutenizing hormone
Estrogen
Progesterone
The hormone that is secreted by the corpus luteum in order to prepare the endometrium for implantation of a fertilized ovum is progesterone. Progesterone prevents the constriction of blood vessels to the endometrium, which in turn prevents the shedding of the endometrial lining (menses). It also alters the endometrium, converting it to it's secretory phase in preparation for implantation.
Example Question #1 : Reproductive Physiology
Which of the following is a normal value of follicle-stimulating hormone (FSH) for a menstruating adult female?
Normal FSH values for a menstruating adult female are . A FSH of
would be considered normal in a premenarchal female, while normal FSH after menopause can range from
.
Example Question #52 : General Biology
What is the function of follicle-stimulating hormone in a menstruating woman?
It triggers the rupture and release of the mature egg from the follicle
It stimulates the formation of the corpus luteum
It stimulates follicles of the uterus in preparation for implantation
It stimulates the maturation of follicles in the ovary
It stimulates the maturation of follicles in the ovary
In a menstruating woman, follicle-stimulating hormone stimulates the maturation of follicles in the ovary. Rupture of the mature follicle and formation of the corpus luteum are both stimulated by lutenizing hormone (LH). The uterus itself does not contain follicles.
Example Question #53 : General Biology
Which of the following is a normal follicle-stimulating hormone (FSH) level in an adult male?
In an adult male, normal FSH can range from . It may be slightly lower in children. Follicle-stimulating hormone is released from the anterior pituitary gland; its target is the testes.
Example Question #54 : General Biology
Which of the following is a function of follicle stimulating hormone (FSH) in an adult male?
It triggers the initiation of spermatogenesis
It stimulates the Sertoli cells of the testes to produce androgen-binding protein
It stimulates primary spermatocytes to undergo meiosis
All of these
All of these
In a healthy adult male, follicle stimulating hormone stimulates the Sertoli cells of the testes to produce androgen-binding protein, it stimulates primary spermatocytes to undergo meiosis, and triggers the initiation of spermatogenesis.
Example Question #55 : General Biology
Which of the following is not a function of luteinizing hormone (LH) in a menstruating female?
It stimulates the maturation of follicles within the ovary
It triggers the release of the mature egg during ovulation
It stimulates the production of estrogen by the ovary
It triggers the development of the corpus luteum
It stimulates the maturation of follicles within the ovary
Luteinizing hormone stimulates the production of estrogen by the ovary, triggers the release of the mature egg during ovulation, and then stimulates the ruptured follicle to develop into the corpus luteum, the structure responsible for providing progesterone to the endometrium in preparation for implantation, if a pregnancy were to occur.
Example Question #56 : General Biology
Which of the following is a normal value for luteinizing hormone (LH) in an adult female experiencing normal menstrual cycles?
All of these
All of these
In a menstruating female, LH values can vary widely during the menstrual cycle. It is its highest at the peak of the menstrual cycle and lowest during the luteal phase of the menstrual cycle
.
All NCLEX Resources
![Learning Tools by Varsity Tutors](https://vt-vtwa-app-assets.varsitytutors.com/assets/problems/og_image_practice_problems-9cd7cd1b01009043c4576617bc620d0d5f9d58294f59b6d6556fd8365f7440cf.jpg)