Quiz Questions Over Kidney Functions

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  • 1/51 Questions

    The Glomerulus:

    • Takes the blood as it leaves the capillaries.
    • Controls blood flow into the capillaries.
    • Is the filtration unit of the nephron.
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About This Quiz

Explore the anatomy of the kidney in this engaging quiz. Test your knowledge on structures such as the renal fascia, ureter, urethra, renal sinus, cortex, and renal medulla. Perfect for students and professionals looking to deepen their understanding of kidney functions.

Quiz Questions Over Kidney Functions - Quiz

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  • 2. 

    Vasectomy is which form of contraceptive method?

    • Behavioral

    • Chemical

    • Mechanical

    • Surgical

    Correct Answer
    A. Surgical
    Explanation
    Vasectomy is a surgical form of contraceptive method. It involves cutting and sealing the vas deferens, which are the tubes that carry sperm from the testicles to the urethra. By blocking the pathway for sperm to leave the body, vasectomy prevents pregnancy. Other forms of contraception such as behavioral, chemical, and mechanical methods do not involve a surgical procedure.

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  • 3. 

    The Glomerulus

    • Controls blood flow into the capillaries of the Glomerulus

    • Takes the blood as it leaves the capillaries

    • Is the filter that makes up a nephron.

    Correct Answer
    A. Is the filter that makes up a nephron.
    Explanation
    The glomerulus is responsible for filtering waste products and excess fluid from the blood in the kidneys. It is a network of tiny blood vessels located in the renal corpuscle of a nephron. As blood flows through the glomerulus, small molecules such as water, salts, and waste products are filtered out and collected in the renal tubules for further processing. Therefore, the statement "Is the filter that makes up a nephron" accurately describes the role and function of the glomerulus in the kidney.

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  • 4. 

    Urine flows out of the kidneys and into the bladder through here.

    • Renal medulla

    • Renal sinus

    • Renal fascia

    • Ureter

    • Urethra

    Correct Answer
    A. Ureter
    Explanation
    Urine flows out of the kidneys and into the bladder through the ureter. The ureter is a muscular tube that connects the kidneys to the bladder, allowing the passage of urine. It carries urine from the renal pelvis, which is the inner part of the kidney, to the bladder for storage.

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  • 5. 

    The Clitoris

    • Is the site of storage and development of oocytes.

    • Is the organ of sexual arousal.

    • Is the lower part of the uterus that opens into the vagina.

    • Is the hollow chamber in which the embryo develops.

    • Is the organ of sexual intercourse. Produces lubricating fluids; also the birth canal

    • Is the duct for transporting oocyte from ovary to uterus; also site of fertilization.

    Correct Answer
    A. Is the organ of sexual arousal.
    Explanation
    The clitoris is the correct answer because it is the organ of sexual arousal. The clitoris is a small, sensitive organ located near the top of the vaginal opening. It contains a high concentration of nerve endings and is highly sensitive to touch and stimulation, making it a key source of sexual pleasure for many individuals.

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  • 6. 

    The Afferent ateriole

    • Controls blood flow into the capillaries of the Glomerulus

    • Takes the blood as it leaves the capillaries

    • Is the filter that makes up a nephron.

    Correct Answer
    A. Controls blood flow into the capillaries of the Glomerulus
    Explanation
    The afferent arteriole controls blood flow into the capillaries of the Glomerulus. The glomerulus is a network of capillaries located in the kidney that is responsible for filtering waste products from the blood. The afferent arteriole is the blood vessel that delivers blood to the glomerulus. By constricting or dilating, the afferent arteriole can regulate the amount of blood flow into the glomerulus, thus controlling the filtration process.

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  • 7. 

    The Endometrium is

    • The proper name of the foreskin on the tip of the penis.

    • Inner wall of the uterus where the embryo lodges during reproduction.

    • The process of which the embryo lodges into the wall of the uterus.

    • The process of which the sperm leaves the male organ and enters the female organ.

    Correct Answer
    A. Inner wall of the uterus where the embryo lodges during reproduction.
    Explanation
    The endometrium is the inner wall of the uterus where the embryo lodges during reproduction. This is the correct answer because the endometrium is the lining of the uterus that thickens each month in preparation for pregnancy. If fertilization occurs, the embryo implants into the endometrium and develops there.

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  • 8. 

    The outermost region of the kidney is the called the

    • Renal medulla

    • Renal sinus

    • Cortex

    • Ureter

    Correct Answer
    A. Cortex
    Explanation
    The correct answer is cortex. The cortex is the outermost region of the kidney. It contains the glomeruli and the proximal and distal convoluted tubules, where the majority of the filtration and reabsorption processes occur. The renal medulla is the inner region of the kidney, the renal sinus is a cavity within the kidney that contains the renal pelvis and calyces, and the ureter is a tube that carries urine from the kidney to the bladder.

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  • 9. 

    This is a tube that takes the urine from the bladder to the outside of the body for disposal.

    • Renal medulla

    • Renal sinus

    • Renal fascia

    • Ureter

    • Urethra

    Correct Answer
    A. Urethra
    Explanation
    The correct answer is urethra. The urethra is a tube that carries urine from the bladder to the outside of the body for disposal. It serves as a pathway for urine to exit the body during urination. The other options mentioned, such as renal medulla, renal sinus, renal fascia, are not related to the function of carrying urine and are not correct in this context.

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  • 10. 

    The penis

    • Is the tube for transporting sperm and glandular secretions.

    • Is the erectile organ of sexual intercourse.

    • Secretes watery alkaline fluid to raise vaginal pH

    • Secretes fructose and most of the seminal fluid.

    • Is the site of sperm development and storage.

    Correct Answer
    A. Is the erectile organ of sexual intercourse.
    Explanation
    The penis is the erectile organ of sexual intercourse. During sexual arousal, the penis becomes engorged with blood, causing it to become erect. This allows for penetration during sexual intercourse.

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  • 11. 

    Using spermicide is which form of contraceptive method?

    • Behavioral

    • Chemical

    • Mechanical

    • Surgical

    Correct Answer
    A. Chemical
    Explanation
    Using spermicide is a form of chemical contraceptive method. Spermicides are chemicals that are designed to kill or immobilize sperm, preventing them from reaching and fertilizing an egg. They are available in various forms such as creams, gels, foams, and suppositories, and are typically used in combination with barrier methods like condoms or diaphragms. Spermicides work by creating a barrier that prevents sperm from entering the cervix, thereby reducing the risk of pregnancy.

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  • 12. 

    The function of tubular reabsorption is:

    • Returns filtered water and nearly all major nutrients to blood.

    • Separates plasma fluid and small solutes from larger proteins and blood cells.

    • Removes harmful or excess substances from blood.

    • Does nothing.

    Correct Answer
    A. Returns filtered water and nearly all major nutrients to blood.
    Explanation
    Tubular reabsorption is the process in which the kidneys reabsorb filtered water and essential nutrients from the renal tubules back into the bloodstream. This helps maintain the body's fluid balance and prevents the loss of important substances. Therefore, the correct answer is that tubular reabsorption returns filtered water and nearly all major nutrients to the blood.

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  • 13. 

    The Vagina

    • Is the site of storage and development of oocytes.

    • Is the organ of sexual arousal.

    • Is the lower part of the uterus that opens into the vagina.

    • Is the hollow chamber in which the embryo develops.

    • Is the organ of sexual intercourse. Produces lubricating fluids; also the birth canal

    • Is the duct for transporting oocyte from ovary to uterus; also site of fertilization.

    Correct Answer
    A. Is the organ of sexual intercourse. Produces lubricating fluids; also the birth canal
    Explanation
    The vagina is the correct answer because it is the organ of sexual intercourse, as well as the production of lubricating fluids. Additionally, it serves as the birth canal during childbirth.

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  • 14. 

    What are kidney stones?

    • Tumor inside the kidney that solidifies and becomes stone-like.

    • Build up of nutrients that form crystal-like shapes.

    • Build up of salts the form crystal-like shapes.

    • Food that is not chewed up enough becomes hardened after it enters the kidney.

    Correct Answer
    A. Build up of salts the form crystal-like shapes.
    Explanation
    Kidney stones are formed due to the build-up of salts that crystallize and form solid, stone-like structures. This occurs when there is an excess of certain substances, such as calcium, oxalate, or uric acid, in the urine. These substances can combine and solidify, forming crystals that eventually grow into larger stones. Kidney stones can cause severe pain and discomfort and may require medical intervention for removal.

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  • 15. 

    The Efferent arteriole:

    • Takes the blood as it leaves the capillaries.

    • Controls blood flow into the capillaries.

    • Is the filtration unit of the nephron.

    Correct Answer
    A. Takes the blood as it leaves the capillaries.
    Explanation
    The efferent arteriole takes the blood as it leaves the capillaries. This is important because the capillaries are responsible for the exchange of oxygen, nutrients, and waste products between the blood and the surrounding tissues. The efferent arteriole helps regulate blood flow into the capillaries, ensuring that the proper amount of blood is delivered to the tissues. It also plays a role in maintaining blood pressure and filtration in the nephron, which is the functional unit of the kidney.

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  • 16. 

    The ejaculatory duct:

    • Is the tube for transporting sperm and glandular secretions.

    • Is the erectile organ of sexual intercourse.

    • Is the site of sperm development and storage.

    • Keeps the testes at the proper temperature.

    • Secretes lubricating mucus.

    Correct Answer
    A. Is the tube for transporting sperm and glandular secretions.
    Explanation
    The ejaculatory duct is responsible for transporting sperm and glandular secretions. It is a tube that connects the vas deferens with the urethra, allowing sperm and seminal fluid to pass through during ejaculation. This duct plays a crucial role in the reproductive system by facilitating the release of sperm for fertilization.

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  • 17. 

    This connective tissued covers each kidney and protects it and anchors it to the abdominal wall.

    • Renal medulla

    • Renal sinus

    • Renal fascia

    • Ureter

    • Urethra

    Correct Answer
    A. Renal fascia
    Explanation
    The correct answer is renal fascia. The renal fascia is a connective tissue that covers each kidney and provides protection. It also helps to anchor the kidneys to the abdominal wall, providing stability and support.

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  • 18. 

    Which step comes immediately after Urine enters the bladder through a pair of openings at the top?

    • As the bladder fills up, the openings of each ureter get pinched shut to prevent urine backup into the kidneys

    • Ureters drain urine from the kidney pelvis into the bladder

    • The layers of smooth muscle moves urine along via peristalsis and a layer of mucous protects the inner lining?

    Correct Answer
    A. As the bladder fills up, the openings of each ureter get pinched shut to prevent urine backup into the kidneys
    Explanation
    The step that comes immediately after urine enters the bladder through a pair of openings at the top is that the openings of each ureter get pinched shut to prevent urine backup into the kidneys. This ensures that urine flows only in one direction, from the kidneys to the bladder, and prevents any backflow.

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  • 19. 

    The Ovary

    • Is the site of storage and development of oocytes.

    • Is the organ of sexual arousal.

    • Is the lower part of the uterus that opens into the vagina.

    • Is the hollow chamber in which the embryo develops.

    • Is the organ of sexual intercourse. Produces lubricating fluids; also the birth canal

    • Is the duct for transporting oocyte from ovary to uterus; also site of fertilization.

    Correct Answer
    A. Is the site of storage and development of oocytes.
    Explanation
    The correct answer is that the ovary is the site of storage and development of oocytes. Oocytes are immature eggs that have the potential to develop into mature eggs and be fertilized by sperm. The ovary is one of the female reproductive organs and is responsible for producing and releasing eggs during the menstrual cycle. It is also involved in the production of hormones such as estrogen and progesterone.

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  • 20. 

    The Efferent ateriole

    • Controls blood flow into the capillaries of the Glomerulus

    • Takes the blood as it leaves the capillaries

    • Is the filter that makes up a nephron.

    Correct Answer
    A. Takes the blood as it leaves the capillaries
    Explanation
    The efferent arteriole is responsible for taking the blood as it leaves the capillaries. It is a small blood vessel that connects the glomerulus, a part of the nephron, to the peritubular capillaries. As the blood flows through the glomerulus, it is filtered to remove waste products and excess water. The efferent arteriole then carries the filtered blood away from the glomerulus and into the peritubular capillaries, where further reabsorption and secretion occur. Therefore, the efferent arteriole plays a crucial role in regulating blood flow and maintaining proper kidney function.

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  • 21. 

    The middle layer of the kidney is called the

    • Renal medulla

    • Renal flagella

    • Cortex

    • Renal sinus

    • Renal fascia

    Correct Answer
    A. Renal medulla
    Explanation
    The correct answer is renal medulla. The renal medulla is the middle layer of the kidney. It is located between the renal cortex and the renal sinus. The renal medulla is made up of renal pyramids, which are cone-shaped structures that contain the collecting ducts of the kidney. These collecting ducts are responsible for transporting urine from the nephrons to the renal pelvis.

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  • 22. 

    The Uterus

    • Is the site of storage and development of oocytes.

    • Is the organ of sexual arousal.

    • Is the lower part of the uterus that opens into the vagina.

    • Is the hollow chamber in which the embryo develops.

    • Is the organ of sexual intercourse. Produces lubricating fluids; also the birth canal

    • Is the duct for transporting oocyte from ovary to uterus; also site of fertilization.

    Correct Answer
    A. Is the hollow chamber in which the embryo develops.
  • 23. 

    Withdrawal is which form of contraceptive method?

    • Behavioral

    • Chemical

    • Mechanical

    • Surgical

    Correct Answer
    A. Behavioral
    Explanation
    Withdrawal is considered a form of contraceptive method because it involves the man pulling out his penis from the vagina before ejaculation in order to prevent sperm from entering the woman's reproductive system. This method relies on the man's self-control and timing to be effective, and it is not as reliable as other forms of contraception.

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  • 24. 

    The scrotum

    • Produces sperm, testosterone, and inhibin.

    • Is the site of sperm development and storage.

    • Keeps the testes at the proper temperature.

    • Secretes watery alkaline fluid to raise vaginal pH

    • Secretes fructose and most of the seminal fluid.

    Correct Answer
    A. Keeps the testes at the proper temperature.
    Explanation
    The scrotum is a pouch of skin that holds the testes outside of the body. It is responsible for keeping the testes at the proper temperature, which is slightly lower than the body temperature. This is important for the production of healthy sperm. If the testes were located inside the body, they would be too warm for sperm production. Therefore, the scrotum plays a crucial role in maintaining the proper temperature for the testes.

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  • 25. 

    Rhythm is which form of contraceptive method?

    • Behavioral

    • Chemical

    • Mechanical

    • Surgical

    Correct Answer
    A. Behavioral
    Explanation
    Rhythm is a form of contraceptive method that involves tracking a woman's menstrual cycle to determine the days when she is most fertile and avoiding sexual intercourse during those times. This method relies on understanding the natural fluctuations in a woman's reproductive hormones and the timing of ovulation. By abstaining from intercourse during the fertile period, couples can effectively prevent pregnancy. It does not involve the use of chemicals, devices, or surgery, making it a natural and non-invasive method of contraception.

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  • 26. 

    Diaphragms are which form of contraceptive method?

    • Behavioral

    • Chemical

    • Mechanical

    • Surgical

    Correct Answer
    A. Mechanical
    Explanation
    Diaphragms are a form of mechanical contraceptive method. They are a barrier method of contraception that involves inserting a flexible dome-shaped device into the vagina to cover the cervix and prevent sperm from reaching the uterus. This method is considered mechanical because it physically blocks the sperm from fertilizing an egg.

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  • 27. 

    The Cervix

    • Is the site of storage and development of oocytes.

    • Is the organ of sexual arousal.

    • Is the lower part of the uterus that opens into the vagina.

    • Is the hollow chamber in which the embryo develops.

    • Is the organ of sexual intercourse. Produces lubricating fluids; also the birth canal

    • Is the duct for transporting oocyte from ovary to uterus; also site of fertilization.

    Correct Answer
    A. Is the lower part of the uterus that opens into the vagina.
    Explanation
    The cervix is the lower part of the uterus that opens into the vagina. This is the correct answer because it accurately describes the location and function of the cervix, which is to allow menstrual blood to flow out of the uterus and to allow sperm to enter the uterus during sexual intercourse.

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  • 28. 

    The Afferent arteriole:

    • Takes the blood as it leaves the capillaries.

    • Controls blood flow into the capillaries.

    • Is the filtration unit of the nephron.

    Correct Answer
    A. Controls blood flow into the capillaries.
    Explanation
    The afferent arteriole is responsible for controlling the blood flow into the capillaries. It acts as a gatekeeper, regulating the amount of blood that enters the capillary network. By constricting or dilating, the afferent arteriole can adjust the pressure and flow of blood, ensuring that the capillaries receive an adequate supply of blood for filtration and exchange of substances. This control mechanism helps maintain the balance of fluid and solutes in the body and is crucial for proper kidney function.

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  • 29. 

    Tubal ligation is which form of contraceptive method?

    • Behavioral

    • Chemical

    • Mechanical

    • Surgical

    Correct Answer
    A. Surgical
    Explanation
    Tubal ligation is a surgical form of contraceptive method. It involves the blocking, sealing, or cutting of the fallopian tubes to prevent the eggs from reaching the uterus for fertilization. This procedure is considered a permanent form of contraception and is typically chosen by individuals who no longer wish to have children.

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  • 30. 

    The testis

    • Secrete fructose and most of the seminal fluid.

    • Produces sperm, testosterone, and inhibin.

    • Is the tube for sperm development, storage, and transport.

    • Secretes fructose and most of the seminal fluid.

    • Is the site of sperm development and storage.

    Correct Answer
    A. Produces sperm, testosterone, and inhibin.
    Explanation
    The correct answer is "Produces sperm, testosterone, and inhibin." This is because the testis is responsible for the production of sperm, which is necessary for reproduction. It also produces testosterone, which is the primary male sex hormone and plays a role in the development of secondary sexual characteristics. Additionally, the testis produces inhibin, a hormone that regulates the production of sperm.

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  • 31. 

    During potty training, this process is learned.

    • During urination the internal sphincter is under voluntary control while the external sphincter relaxes. The internal sphincter only relaxes consciously at an appropriate time.

    • During urination the external sphincter is under voluntary control while the internal sphincter relaxes. The external sphincter only relaxes consciously at an appropriate time.

    • During urination the internal and external sphincter are under voluntary control. They only relax once consciously at an appropriate time.

    • During urination the internal and external sphincter are relaxed until consciously contracted.

    Correct Answer
    A. During urination the external sphincter is under voluntary control while the internal sphincter relaxes. The external sphincter only relaxes consciously at an appropriate time.
    Explanation
    During urination, the external sphincter is the muscle that is under voluntary control, meaning that we can consciously choose to relax or contract it. On the other hand, the internal sphincter relaxes automatically without our conscious control. It only relaxes at an appropriate time, which is when we consciously choose to relax the external sphincter and allow urine to flow out. This process is important during potty training because children need to learn how to control their external sphincter and consciously relax it when they need to urinate.

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  • 32. 

    The seminal vesicle

    • Produces sperm, testosterone, and inhibin.

    • Is the site of sperm development and storage.

    • Is the erectile organ of sexual intercourse.

    • Secretes fructose and most of the seminal fluid.

    • Secretes watery alkaline fluid to raise vaginal pH

    Correct Answer
    A. Secretes fructose and most of the seminal fluid.
    Explanation
    The seminal vesicle secretes fructose and most of the seminal fluid. Seminal fluid is an important component of semen, and it helps to nourish and protect sperm. Fructose, a type of sugar, provides energy for sperm motility. Therefore, the secretion of fructose and seminal fluid by the seminal vesicle plays a crucial role in sperm function and fertility.

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  • 33. 

    The Bulbourethral gland

    • Secretes lubricating mucus.

    • Secretes watery alkaline fluid to raise vaginal pH.

    • Is the site of sperm development and storage.

    • Keeps the testes at the proper temperature.

    • Produces sperm, testosterone, and inhibin.

    Correct Answer
    A. Secretes lubricating mucus.
    Explanation
    The Bulbourethral gland secretes lubricating mucus. This mucus helps to lubricate the urethra and the tip of the penis during sexual arousal, facilitating the passage of sperm and protecting the sperm from the acidic environment of the urethra. It also helps to enhance the mobility of sperm, making it easier for them to reach the egg for fertilization.

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  • 34. 

    Intrauterine devices, or IUD's, are which form of contraceptive method?

    • Behavioral

    • Chemical

    • Mechanical

    • Surgical

    Correct Answer
    A. Mechanical
    Explanation
    IUDs are considered a mechanical form of contraceptive method because they physically prevent pregnancy by being inserted into the uterus. They work by either releasing hormones that prevent ovulation or by creating an environment that is hostile to sperm, preventing fertilization. Unlike behavioral or chemical methods, which rely on actions or substances to prevent pregnancy, IUDs directly block the fertilization process. Surgical methods, on the other hand, involve permanent sterilization through procedures such as tubal ligation or vasectomy.

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  • 35. 

    What is the order of the steps in the formation of urine.

    • Tubular secretion, tubular reabsorption, glomerular filtration.

    • Tubular reabsorption, glomerular filtration, tubular secretion.

    • Glomerular filtration, tubular secretion, tubular reabsorption.

    • Glomerular filtration, tubular reabsorption, tubular secretion.

    Correct Answer
    A. Glomerular filtration, tubular reabsorption, tubular secretion.
    Explanation
    The correct order of the steps in the formation of urine is glomerular filtration, tubular reabsorption, and tubular secretion. This is because glomerular filtration occurs first, where blood is filtered in the glomerulus of the nephron, allowing water, ions, and small molecules to pass into the renal tubule. Then, tubular reabsorption takes place, where the renal tubule reabsorbs valuable substances like glucose, amino acids, and water back into the bloodstream. Finally, tubular secretion occurs, where substances such as hydrogen ions and certain drugs are actively secreted from the bloodstream into the renal tubule to be excreted in the urine.

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  • 36. 

    Ru-486, or plan b, is which form of contraceptive method?

    • Behavioral

    • Chemical

    • Mechanical

    • Surgical

    Correct Answer
    A. Chemical
    Explanation
    Ru-486, also known as plan b, is a chemical form of contraceptive method. This means that it involves the use of chemicals, such as hormones, to prevent pregnancy. Unlike behavioral methods that rely on changing behaviors or mechanical methods that involve the use of physical barriers, Ru-486 works by interfering with the normal hormonal processes in the body to prevent fertilization or implantation of a fertilized egg. Surgical methods, on the other hand, involve a physical procedure to permanently prevent pregnancy.

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  • 37. 

    The function of glomerular filtration is:

    • Returns filtered water and nearly all major nutrients to blood.

    • Separates plasma fluid and small solutes from larger proteins and blood cells.

    • Removes harmful or excess substances from blood.

    • Does nothing.

    Correct Answer
    A. Separates plasma fluid and small solutes from larger proteins and blood cells.
    Explanation
    The correct answer is "Separates plasma fluid and small solutes from larger proteins and blood cells." This is because glomerular filtration is a process that occurs in the kidneys, where the glomerulus filters blood and separates plasma fluid and small solutes from larger proteins and blood cells. This filtration process is important for maintaining the composition of the blood and removing waste products from the body.

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  • 38. 

    The Oviduct

    • Is the site of storage and development of oocytes.

    • Is the organ of sexual arousal.

    • Is the lower part of the uterus that opens into the vagina.

    • Is the hollow chamber in which the embryo develops.

    • Is the organ of sexual intercourse. Produces lubricating fluids; also the birth canal

    • Is the duct for transporting oocyte from ovary to uterus; also site of fertilization.

    Correct Answer
    A. Is the duct for transporting oocyte from ovary to uterus; also site of fertilization.
    Explanation
    The Oviduct is the correct answer because it is the duct that transports the oocyte from the ovary to the uterus. It is also the site of fertilization, where the sperm meets and fertilizes the egg.

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  • 39. 

    The hollowed out inside of a kidney is called the

    • Renal medulla

    • Renal sinus

    • Renal fascia

    • Ureter

    • Cortex

    Correct Answer
    A. Renal sinus
    Explanation
    The correct answer is renal sinus. The renal sinus refers to the hollowed out inside of a kidney that contains blood vessels, nerves, and the renal pelvis. It acts as a space for these structures to pass through and allows for the drainage of urine from the kidney. The renal medulla refers to the innermost part of the kidney, the renal fascia is a layer of connective tissue that surrounds the kidney, the ureter is the tube that carries urine from the kidney to the bladder, and the cortex is the outer part of the kidney.

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  • 40. 

    The function of tubular secretion is:

    • Returns filtered water and nearly all major nutrients to blood.

    • Separates plasma fluid and small solutes from larger proteins and blood cells.

    • Removes harmful or excess substances from blood.

    • Does nothing.

    Correct Answer
    A. Removes harmful or excess substances from blood.
    Explanation
    Tubular secretion is a process in the kidneys where substances that were not filtered out during the initial filtration process are actively transported from the blood into the renal tubules. This process allows the kidneys to remove harmful or excess substances, such as drugs, toxins, and metabolic waste products, from the blood and excrete them in the urine. Therefore, the correct answer is that tubular secretion removes harmful or excess substances from the blood.

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  • 41. 

    The kidneys can filter

    • 120 liters of blood per day

    • 160 liters of blood per day

    • 180 liters of blood per day

    • 5 liters of blood per day

    • 6 liters of blood per day

    Correct Answer
    A. 180 liters of blood per day
    Explanation
    The kidneys are responsible for filtering waste products and excess fluids from the blood to form urine. They play a crucial role in maintaining the body's fluid and electrolyte balance. While the average adult has a blood volume of about 5 liters, the kidneys are able to filter a much larger amount of blood each day. The correct answer of 180 liters per day indicates the remarkable filtering capacity of the kidneys, highlighting their importance in maintaining overall health and homeostasis.

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  • 42. 

    Antidiuretic Hormone

    • Allows water to leave the tubule system.

    • Allows water to enter the tubule system.

    • Enhances the salt gradient.

    • Decreases the salt gradient.

    Correct Answer
    A. Allows water to leave the tubule system.
    Explanation
    Antidiuretic hormone (ADH) is a hormone released by the pituitary gland that plays a crucial role in regulating water balance in the body. It acts on the kidneys to increase water reabsorption, allowing more water to be reabsorbed from the tubule system back into the bloodstream. This helps to concentrate urine and conserve water in the body. Therefore, the statement "Allows water to leave the tubule system" is the correct answer as it accurately describes the function of ADH.

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  • 43. 

    Together, these hormones allow for the recovery of most of the water passing through the kidneys. This allows the body to conserve water and hold off the effects of severe dehydration.

    • Angiotensin I and angiotensin II

    • ADH and Renin

    • Aldosterone and Renin

    • Aldosterone and angiotensin II

    • ADH and Aldosterone

    • ADH I and ADH II

    Correct Answer
    A. ADH and Aldosterone
    Explanation
    ADH (antidiuretic hormone) and aldosterone work together to allow for the recovery of most of the water passing through the kidneys. ADH acts on the kidneys to increase water reabsorption, reducing the amount of water lost in urine. Aldosterone acts on the kidneys to increase sodium reabsorption, which in turn promotes water reabsorption. By conserving water, these hormones help the body hold off the effects of severe dehydration.

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  • 44. 

    In females, the urethra is around _____ inches long while in men it is around _______ inches long

    • 2, 7-9

    • 4, 5-6

    • 1.5, 6-8

    • .5, 4-6

    • 2.5, 3-5

    Correct Answer
    A. 1.5, 6-8
  • 45. 

    Nephrons:

    • Functional unit of a kidney.

    • Located in the cortex and medulla.

    • Located in the sinus and fascia.

    • There are 2 of them in each kidney.

    • Responsible for filtering blood and producing urine.

    • Responsible for protecting the kidney and keeping it attached to the abdominal wall.

    Correct Answer(s)
    A. Functional unit of a kidney.
    A. Located in the cortex and medulla.
    A. Responsible for filtering blood and producing urine.
    Explanation
    The nephrons are the functional units of the kidney, responsible for filtering blood and producing urine. They are located in both the cortex and medulla of the kidney. The other statements mentioned in the question, such as the number of nephrons in each kidney and their role in protecting the kidney and attaching it to the abdominal wall, are incorrect.

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  • 46. 

    What step comes immediately after the layers of smooth muscle moves urine along via peristalsis and a layer of mucous protects the inner lining?

    • As the bladder fills up, the openings of each ureter get pinched shut to prevent urine backup into the kidneys

    • Urine enters the bladder through a pair of openings at the top

    • Ureters drain urine from the kidney pelvis into the bladder

    Correct Answer
    A. Urine enters the bladder through a pair of openings at the top
  • 47. 

    What step comes immediately before the layers of smooth muscle moves urine along via peristalsis and a layer of mucous protects the inner lining?

    • As the bladder fills up, the openings of each ureter get pinched shut to prevent urine backup into the kidneys

    • Urine enters the bladder through a pair of openings at the top

    • Ureters drain urine from the kidney pelvis into the bladder

    Correct Answer
    A. Ureters drain urine from the kidney pelvis into the bladder
    Explanation
    The step that comes immediately before the layers of smooth muscle moves urine along via peristalsis and a layer of mucous protects the inner lining is "Ureters drain urine from the kidney pelvis into the bladder." This step is necessary for urine to be present in the bladder so that the smooth muscles can contract and move the urine along via peristalsis. Additionally, the layer of mucous protects the inner lining of the bladder from the acidic nature of urine.

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  • 48. 

    The epididymis:

    • Produces sperm, testosterone, and inhibin.

    • Is the tube for sperm development, storage, and transport.

    • Is the erectile organ of sexual intercourse.

    • Is the site of sperm development and storage.

    • Secretes lubricating mucus.

    Correct Answer
    A. Is the site of sperm development and storage.
    Explanation
    The epididymis is a coiled tube located on the back of each testicle. It is responsible for the development and storage of sperm. Sperm produced in the testes enter the epididymis to mature and gain the ability to swim. The epididymis also provides a suitable environment for sperm storage until ejaculation occurs. Therefore, it is the site of both sperm development and storage.

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  • 49. 

    the Prostate gland

    • Secretes lubricating mucus.

    • Is the tube for sperm development, storage, and transport.

    • Secretes watery alkaline fluid to raise vaginal pH.

    • Produces sperm, testosterone, and inhibin.

    • Keeps the testes at the proper temperature.

    Correct Answer
    A. Secretes watery alkaline fluid to raise vaginal pH.
    Explanation
    The correct answer is "Secretes watery alkaline fluid to raise vaginal pH." The prostate gland is a part of the male reproductive system and is responsible for secreting a fluid that helps to raise the pH of the vagina, making it more alkaline. This alkaline environment is essential for the survival and motility of sperm.

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Quiz Review Timeline (Updated): Mar 20, 2023 +

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 12, 2011
    Quiz Created by
    Laurad

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