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23 Cards in this Set
- Front
- Back
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Five functions of the URINARY SYSTEM |
- Excretion of metabolic waste - Maintenance of water-salt balance - Maintenance of acid-base balance - Secretion of hormones - Reabsorbs filtered nutrients and synthesizes vitamin D |
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Function of kidneys |
Produce urine Filter waste particles Anything the liver has worked on is filtered out thru the kidneys |
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Function of ureters |
Transport urine from kidneys to bladder |
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Function of urinary bladder |
Stores urine until it is expelled by the body |
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Funtion of urethra |
Removes urine from the body |
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Renal artery |
Transports blood to be filtered to the kidneys |
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Renal vein |
Carries filtered blood away from the kidneys |
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Renal cortex |
Outer, granulated later Consists of glomerular capsule and convoluted tubes |
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Renal medulla |
Consists of cone shaped tissue masses called renal pyramids Contains loops of nephron (dips down into) and collecting ducts which together give renal pyramid their appearance |
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Renal pelvis |
A central space, or cavity, continuous with the ureter |
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Nephrons |
The functional unit of the kidneys Filter blood and produce urine |
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Afferent arteriole |
Transports blood to the glomerulus |
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Efferent arteriole |
Receives blood from glomerulus Divides and forms into peritubular capillaries |
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Peritubular capillaries |
Surrounds nephrons Glucose, minerals, and vitamins are reabsorbed here and returned to blood Transports blood from efferent arterioles to venules that carry blood into renal veins |
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Glomerular capsule |
Cuplike structure that surrounds the glomerulus |
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Podocytes |
Cling to capillary walls of glomerulus and leave pores that allow easy passage of small molecules |
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Glomerulus |
Filtration of blood |
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Glomerular filtration |
Produces a filtrate of blood |
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Proximal convoluted tubule |
Reabsorption of beneficial nutrients |
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Loop of nephron |
Exchange of salt and water Consists of ascending and descending limbs |
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Distal convoluted tubule |
Ion exchange Waste products pass from blood into these tubules |
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Collecting ducts |
Carry urine to the renal pelvis |
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Memorize |
