The oral contraceptive pill, informally called "the pill," contains an estrogen and progesterone, or a synthetic mimic of this hormone. The combination of these two hormones, taken in the pill and circulating in the blood, works because
the hormones create an acid condition in the vagina that acts as a spermicide
the hormones prevent the proliferative or secretory phase of the menstrual cycle and the embryo will have no place to implant
the hormones cause the woman's body to mimic the activities of a pregnancy and disrupt the ovarian cycle, preventing ovulation
the hormones cause a thickening of the mucus plug at the cervix that prevents sperm from penetrating the womb and reaching the ovulated egg
The Correct Answer is C
A. the prostate: The prostate gland contributes approximately 25 to 30 percent of the total seminal volume. Its secretion is a milky, slightly acidic fluid containing citrate, enzymes, and prostate-specific antigen. While vital for sperm activation and liquefaction, it does not provide the majority of the fluid volume.
B. the pituitary: The pituitary gland is an endocrine organ located in the sella turcica of the sphenoid bone. It secretes gonadotropins like follicle-stimulating hormone and luteinizing hormone to regulate the reproductive system. It does not produce any components of the liquid semen ejaculated from the male reproductive tract.
C. the epididymis: The epididymis serves as the primary site for sperm maturation and storage where they acquire motility. While it adds a very small amount of fluid to support the sperm, its contribution to the final volume of ejaculate is negligible. It is a ductal structure rather than a major secretory gland.
D. the seminal vesicles: These paired glands produce about 70 percent of the total semen volume. The secretion is a viscous, alkaline fluid rich in fructose, prostaglandins, and clotting proteins. This fluid provides the primary energy source for sperm and helps neutralize the acidic environment of the female reproductive tract.
E. the bulbourethral glands: Also known as Cowper's glands, these small structures secrete a clear, alkaline mucus during sexual arousal. This pre-ejaculate lubricates the glans penis and neutralizes residual acidic urine in the urethra. Their contribution to the final volume of semen is usually less than 5 percent.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. distractor: There is no muscle in human anatomy with this specific designation. This term is likely a distractor intended to confuse the reader with the similar-sounding name of the actual bladder muscle. Muscle nomenclature usually reflects the function, location, or orientation of the fibers, which is not represented by this term.
B. detrusor: This consists of three layers of smooth muscle fibers arranged in inner longitudinal, middle circular, and outer longitudinal orientations within the bladder wall. During micturition, the parasympathetic nervous system stimulates the detrusor to contract, which increases internal pressure to expel urine. It remains relaxed during the storage phase to allow for bladder filling.
C. corpus spongiosum: This is a column of erectile tissue located in the male penis that surrounds the spongy urethra. Its primary function is to prevent the urethra from being pinched shut during an erection, ensuring that semen can be ejaculated. It is a vascular structure rather than a muscular component of the urinary bladder.
D. cremaster: This is a skeletal muscle found in the spermatic cord and scrotum of males. It functions to elevate the testes toward the body cavity in response to cold or sexual arousal to regulate testicular temperature. It is not located within the pelvic viscera or the walls of the urinary bladder.
Correct Answer is C
Explanation
A. seminal vesicles: These glands provide the majority of the fluid volume in semen, including fructose for energy. However, they do not house sperm for maturation or long-term storage. Sperm only mix with seminal vesicle secretions during the process of emission and ejaculation.
B. prostate gland: The prostate secretes an acidic, milky fluid that activates sperm and aids in liquefaction of the bolus. It is a secretory organ rather than a storage site for gametes. Sperm pass through the prostatic urethra but do not reside within the gland itself.
C. epididymis: This structure is specifically designed to store sperm for several weeks as they undergo functional maturation. During this time, sperm develop the ability to swim and eventually fertilize an oocyte. It provides the necessary chemical environment for these physiological changes to occur.
D. rete testis: This is a network of delicate canaliculi located in the mediastinum testis that collects sperm from the seminiferous tubules. It serves as a transit point rather than a site for maturation or storage. Fluid pressure moves the immobile sperm quickly through this area toward the epididymis.
E. seminiferous tubules: While these are the sites of sperm production (spermatogenesis), the sperm produced here are immature and non-motile. They are moved out of these tubules by fluid currents almost immediately after spermiation. They are not designed for the storage or maturation of the gametes.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.