Term
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Definition
- 2 kidneys
- 2 ureters
- 1 bladder
- 1 urethra
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Term
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Definition
- Filter blood
- Returns most of h2o and salutes back to blood
- Excretes the rest-urine
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Term
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Definition
| Urine-> excreted from each kidney-> to ureters-> stored in bladder-> expelled thru urethra |
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Term
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Definition
Regulate:
- Ions in blood
- Blood pH
- Blood volume
- Blood pressure
- Blood glucose levels
Maintain blood osmolarity
release hormones (calcitrol, erythropoietin)
excretion of wastes and foreign substances |
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Term
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Definition
- Kidney bean shaped
- Retro peritoneal
- Posterior, abdominal wall
- Protected by 11th and 12th ribs
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Term
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Definition
| Center where BVs, lymphatic, nerves, enter and leave |
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Term
3 layers of tissues surrounding kidneys:
renal capsule |
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Definition
| Inner; protects, maintains shape |
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Term
3 layers of tissues surrounding kidneys:
adipose capsule |
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Definition
| Middle; protects from trauma |
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Term
3 layers of tissues surrounding kidneys:
renal fascia |
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Definition
| Outer; thin layer of dense irregular CT, anchors kidneys to surrounding structures |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
| apex of pyramids; pt. towards center |
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Term
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Definition
| Part of cortex between pyramids |
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Term
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Definition
| Renal cortex and renal pyramids contain functional units of kidneys called nephrons |
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Term
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Definition
| Make urine and deposit it into papillary ducts |
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Term
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Definition
| Drain urine into cup like structures called minor calyx and then major calyx |
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Term
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Definition
| Cavity; contains renal pelvis, calyces, and renal BVs and nerves. |
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Term
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Definition
| Removes wastes, regulate blood volume and ion conc. |
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Term
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Definition
| (R,L) bring in blood. 1200 ml/min |
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Term
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Definition
| Branches into smaller arteries eventually forming afferent arterioles. |
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Term
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Definition
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Term
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Definition
| Moves blood away from kidneys |
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Term
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Definition
| Surround nephrons tube in cortex |
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Term
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Definition
| Around long loop tubes of nephron in medulla |
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Term
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Definition
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Term
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Definition
Functional unit kidney;
- Filter blood
- Filtrate forms (fluids)
- Return of useful substances back into blood
- Removes unwanted substanceforum blood
- forms urine
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Term
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Definition
Cortical: short loop of Henle (80-85%)
juxtamedullary: long loop of Henle; allows excretion of very dilute or concentrated urine |
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Term
| Single layer of epithelium lines |
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Definition
Glomerular capsule wall
renal tubule and ducts |
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Term
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Definition
Visceral layer
parietal layer
both made of simple squamous epithelium |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Where fluid enters the capsular |
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Term
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Definition
| H2O and solutes in plasma of blood are filtered out |
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Term
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Definition
| 99% of filtrate will be reabsorbed by tubule cells (exit tubules) and returned to blood |
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Term
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Definition
| Wastes from blood will be secreted (enter tubule) to be excreted as urine. |
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Term
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Definition
| Occurs in glomerulus within bow mans capsule |
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Term
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Definition
| Movement of material (nutrients) from filtrate to blood |
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Term
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Definition
| Most occurs in proximal convoluted tubule |
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Term
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Definition
| Occurs along loop of Henle |
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Term
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Definition
Occurs in distal tubule and collecting ducts.
- Only under special circumstances (dehydration)
- Hormones alter permeability of distal tubule and collecting ducts
- Increased permeability allows for increased reabsorption of h2o and Na
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Term
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Definition
Occurs in distal convoluted tubule
- Move remaining wastes from blood to filtrate
- 1:1 exchange of potassium for Na
- Hydrogen secreted for pH regulation.
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Term
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Definition
(Modified smooth muscle fibers)
Filtration-manipulate BP |
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Term
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Definition
| Kidneys maintain blood flow thru kidneys |
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Term
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Definition
| W/ an increased BP- stretch of walls of afferent arterioles. |
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Term
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Definition
| Reduces glomerular filtration rate |
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Term
| Atrialnatriuretic peptide (ANP) in cells of atria |
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Definition
| Increase glomerular filtration rate |
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Term
| Anti-diuretic hormone (ADH) |
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Definition
| Causes increased h2o reabsorption |
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Term
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Definition
| Causes increased Na reabsorption |
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Term
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Definition
Causes release of anti-diuretic and aldosterone.
By product of effects is increased in BP. |
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