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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 |