Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Renal System O1
Introduction to Renal: Fuctional Anatomy and Processes, Hamra, 128/2013
| Question | Answer |
|---|---|
| Functions of the Kidney | Regulation of water/electrolyte balance, Excretion of metabolic waste, excretion of bioactive substances, regulations of arterial pressure, Regulation of red blood cell production, regulation of vit D production, Gluconeogenesis |
| Kidneys receive what percent of the cardiac output? | 20% |
| ALl renal corpuscles are located in the | Cortex |
| 3 types of nephrons | Superficial, mid-cortical, juxtamedullary |
| Three layers of the filtration barrier | Capillary endothelium, Glomerular basement membrane, Layer of epithelial podocytes |
| The capillary endothelium allows passage of everything except | Blood cells and platelets |
| Define filtration slits | Spaces between the pedicles |
| What bridges the slits between pedicles | Slit diaphragms |
| The filtration barrier is covered with glycoproteins with what type of charge? | Negative |
| Which is more easily filtered, negative or positively charged solutes | Positive because the barrier is negative and repels negative ions |
| The filtration barrier allows passage of large volumes of fluid but restricts filtration of | Large plasma proteins like albumin |
| Glomerular capillary loops are supported by a network of | Mesangial cells |
| When mesangial cells contract, what happens to the surface area of the capillary membrane? | Decreases |
| Specialized epithelial cells of the thick ascending limb where it contacts its glomerulus | Macula densa |
| Juxtaglomerular cells, or granular cells, are specialized smooth muscle cells that are located in | The wall of the afferent arteriole |
| What is the majority of innervation in the kidney | Sympathetics |
| Define freely filtered | Substance that is present in the filtrate at the same concentration as found in the plasma (aka NOT bound to proteins) |
| Glomerular filtrate is mostly like plasma except it contains very little | Protein |
| Units of GFR | Volume of filtrate formed per unit time |
| Role of the Loop of Henle | Reabsorbs 20% of filtered NaCl and 10% of water, therefor diluting the luminal fluid relative to normal plasma and the surrounding interstitium |
| Cortical connecting tubules and collection ducts are regulated by which two hormones | Aldosterone and ADH |
| With aldosterone present, do you have more sodium present in the final urine or less? | Less |
| With ADH present, is the final urine more concentrated or dilute | Concentrated |
| What is the role of cortisol? | Inhibits reabsorption of calcium |
| ANP causes you to do what? | Dump sodium and water |
Created by:
mcasto
Popular Medical sets