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Excretory Review
| Term | Definition |
|---|---|
| Calyx | Chambers of the kidney through which urine passes |
| Podocyte | An epithelial cell of the visceral layer of Bowman capsule in the renal corpuscle; believes to play a role in the ultra filtration of blood |
| Urethra | The tubular passage through which urine is discharged from the bladder to the exterior of the body |
| Reabsorption | The act or process of absorbing again, as the absorption by the kidneys of substances that were already secreted into the tubules, such as glucose, proteins, or sodium |
| Afferent Arteriole | A group of blood vessels that supply the nephrons in many excretory systems |
| Ureter | Tubes that carry urine to from kidney to bladder |
| Urinary Bladder | The organ that collects urine excreted by the kidneys before disposal by urination |
| Bowman's Capsule | A capsule-shaped membranous structure surrounding the glomerulus of each nephron in the kidneys |
| Efferent Arteriole | Carries blood away from the glomerulus |
| Where is the collecting duct located? | Medulla |
| How many nephrons are in each kidney? | 1 million |
| Example of secretion | Saliva |
| What are the two main functions of the kidney? | To excrete waste, maintain water |
| Nitrogenous | The kidney is referred to as an excretory organ because it excretes ____ wastes |
| Water, Acid-Base | It is also a major homeostatic organ because it maintains the electrolyte___ and ___ balance of the blood |
| Kidneys, Ureters, Peristalsis, Urinary Bladder | Urine is continuously formed by the ___ an routed down the ___ by the mechanism of ___ to a storage organ called the ___ |
| Urethra | Eventually the urine is conducted to the body exterior by the __ |
| 8, 1 1/2 | In males, this tube-like structure is about ___ inches long; in females, it is approximately ___ inches long. |
| What is the purpose of the internal sphincter? | Inhibits release of urine |
| What does convoluted mean? | Complex |
| Glomerulus | Step 1 of filtration |
| Bowmans capsule | Step 2 of filtration |
| Pro | Step 3 of filtration |
| Loop of henle | Step 4 of filtration |
| Distal | Step 5 of filtration |
| Collecting duct | Step 6 of filtration |
| Renal pelvis | Step 7 of filtration |
| Ureter | Step 8 of filtration |
| Bladder | Step 9 of filtration |
| Urethra | Step 10 of filtration |
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Kface
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