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A&P Ch 28
Urinary System
| Question | Answer |
|---|---|
| Waste product normally excreted by the kidneys? | Urea |
| Which is the correct order of blood flow through a kidney? | Interlobar arteries, arcuate arteries, glomerular capillaries, arcuate veins |
| The portion of the kidney that extends between the renal pyramids is called the | Renal columns |
| Which is the correct order of filtrate flow of blood through the kidneys? | Glomerular capsule, proximal convoluted tubule, loop of Henle, distal convoluted tubule, collecting duct |
| Which structure of the nephron reabsorbs the most substances? | Proximal convoluted tubule |
| This is a nephron process that results in a substance in blood entering the already formed filtrate. | Secretion |
| Tubule and duct cells reabsorb what percentage of filtered water to the blood? | 99% |
| The proximal convoluted tubules reabsorb what percentage of filtered water? | 65% |
| Substances secreted by the tubules of a nephron? | Ammonia, Hydrogen ions, Creatinine |
| Ways angiotensin II affects the kidneys? | It enhances reabsorption of certain ions, It can increase the amount of water reabsorbed by the kidneys, and it stimulates the release of aldosterone from the adrenal glands |
| Which is the major hormone that regulates water reabsorption? | Anti-diuretic hormone |
| Increased secretion of aldosterone would result in ______________ of blood ____________? | Increase, sodium |
| Which layer of the urethra consists of areolar connective tissue containing blood vessels, lymphatic vessels, and nerves? | Adventitia |
| This lies in the anterior corner of the trigone of the bladder. | Internal urethral orifice |
| What is the capacity of urine storage in the urinary bladder? | 700-800 ml |
| This is the structure of the nephron that filters blood | Glomerular capsule |
| This term means entry of substances into the body from the filtrate | Reabsorption |
| This transports urine from the kidney to the bladder | Ureter |
| How many layers of tissue are there in the wall of the ureters and the wall of the urinary bladder? | Both the ureters and the bladder have three layers |
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